an un-American concept such as subsidized medical treatment 
非美国概念,例如补贴医疗
(not typical of the US)
(不是典型的美国)
Non-U.S. concepts such as subsidized medical care
补贴医疗等非美国理念
 in verbs that describe the opposite of a process
在描述过程相反的动词中
Constitute a verb that expresses the opposite process
构成表示相反过程的动词
Unlock
开锁
undo
解开
Un
 Informal
 a way of saying or writing one
一种说或写的方式
(Equal to one)
(等于 one ) 
 That was a good un
那是一个很好的联合国
That thing is good
那个东西不错
The little uns ( the small children) couldn’t keep  up
小家伙们(小孩子)跟不上
Little bit can't keep up
小不点儿跟不上了
Unabashed
毫不掩饰的
not ashamed, embar­rassed or affected by peopled disapproval, when other people would be
不会因为别人的反对而感到羞耻、尴尬或影响
Don't care; not shy or selfish; not embarrassed
乎的;不害羞私;不难为情的
opposé 
abashed
unabashedly 
毫不掩饰地
Unabated
有增无减
Formal
without becoming any less strong
不会变得不那么强大
Undiminished; not weakened
不减;未变
 The rain continued unabated.
继续有增无减
 The rain has not weakened
雨势一
unable
to do sth (rather formal) not having the skill, strength, time, knowledge, etc. to do sth 
〜做某事(相当正式的)没有做某事的技能、力量、时间、知识等
No required skills (or power, time knowledge, etc.); failed; unable
没有所需技能(或力量时间知识等);未能;无法
He lay there, unable to move
他躺在那里,动弹不得
He lay there immobile
他躺在那里动弹不得
 I tried to contact him but was unable to
我试图联系他但无法联系
I tried to contact him, but I didn't get in touch
我试着跟他联系,却没联系上
opposé
able
unabridged 
未删节的
of a novel, play, speech, etc
小说、戏剧、演讲等
Novels, plays, side talks, etc.
小说、戏剧、讲邊等
complete, without being made shorter in any way
完整,没有以任何方式缩短
Opposé
Abridged
简略
(Version) complete; unabridged
 (版本)完整的;未删节的
Unaccented
不重音 
of sb’s speech
某人的演讲
Speak
讲话 
having no regional or foreign accent
没有地方口音或外国口音
Without a local (or foreign) accent; without an accent
不带方(或国)口音的;无口音的
phonetics
语音
of a syllable
一个音节的
syllable
音节
having no stress
没有压力
Unstressed
非重读的 
unacceptable 
不可接受的
 that you cannot accept, allow or approve of 
您不能接受、允许或同意
Unacceptable (or allow, agree)
不能接受 (或允许、同意)的
Such behaviour is totally inacceptable in a civilized society.
这种行为在文明社会是完全不能接受的。
This kind of behavior is totally unacceptable in a civilized society
这种行为在文明社会皇 完全不能接受的
Noise from the factory has reached an unacceptable level
来自工厂的噪音已达到不可接受的水平
The noise of the factory has reached intolerable level
工厂的噪声达到了难以容忍的地
Opposé
Acceptable
可以接受
unacceptably 
不可接受地
unacceptably high level of unemployment
令人无法接受的高失业率 
Unexpectedly high unemployment rate
奇高的失业率
Unaccompanied
无人陪伴 
formal
 without a person going together with sb/sth
没有人结伴而行
Unaccompanied (or accompanying)
无人陪伴 (或同行)的
No unaccompanied children allowed 
不允许无人陪伴的儿童
Children led by adults are not allowed to enter
大人带领的儿童不许进入
Children without an adult are not allowed to enter
无大人带领的儿童不许进入
unaccompanied luggage/ baggage ( travelling separately from its owner)
无人陪伴的行李/行李(与其主人分开旅行)
Checked baggage
托运的行李
 Music
 
performed without anyone else playing or singing at the same time 
在没有其他人同时演奏或唱歌的情况下表演
Unaccompanied
无伴奏的;无伴唱的
a sonata for unaccompanied violin
无伴奏小提琴奏鸣曲
Unaccompanied Violin Sonata
无伴奏小提琴奏 
formal
~ by sth not together with a particular thing
~ 不和某件事在一起
No; not accompanied by
没有;伴有
Mere words, unaccompanied, by any violence, cannot amount to an assault
单独的言语,没有伴随任何暴力,不能构成攻击
Only words without violence cannot be considered an attack
只有言语而未伴随暴力不能算攻击
unaccountable 
不负责任的
formal
impossible to understand or explain
无法理解或解释
Incomprehensible
 无法理解的;难以解知的
Synonym
inexplicable
For some unaccountable reason, the letter never arrived
由于某种无法解释的原因,这封信从未到达
For some reason, the letter never arrived
不知何故,那封信始终未寄到
〜(to sb/sth) not having to explain or give reasons for your actions to anyone
〜(对某人/某事)不必向任何人解释或说明您的行为
No explanation (or explanation) required; irresponsible
无须解(或说明)的;不负责的
Too many government departments are unaccountable to the general public
太多政府部门对公众不负责任
Too many government departments are not responsible to the public
有太多的政府部门不对社会大众负责
opposé
accountable
unaccountably
不负责任地
formal
 in a way that is very difficult to explain; without any obvious reason
以一种很难解释的方式; 没有任何明显的原因
Inexplicably; inexplicably; without obvious reason
难以解释地;莫名其妙地;无明显原因地
opposé
inexplicably
莫名其妙
He has been unaccountably delayed.
他被莫名其妙地耽搁了
He was inexplicably delayed
他被莫名其妙地耽误了
unaccounted for 
下落不明
a person or thing that is unaccounted for cannot be found and people do not know what has happened to them or it
无法找到下落不明的人或物,人们不知道他们或它发生了什么
Missing
下落不明;失踪
At least 300 civilians are unaccounted for after the bombing raids.
轰炸袭击后至少有 300 名平民下落不明
After the bombing attack, at least 300 civilians are missing
 遭轰炸袭击之后,至少有300名平民下落不明
not explained 
不解释
Unexplained; unexplained
未解释;未说明
in the story he gave the police, has an hour was left unaccounted for
在他给警察的故事中,有一个小时下落不明
Half an hour of his statement to the police did not explain clearly
他对警察的陈述中有半个小时的事情未交代清楚
Unaccustomed
不习惯
 to sth/to doing sth not in the habit of doing sth; not used to sth 
to sth/to do sth 不习惯做某事; 不习惯……
Not used to
不习惯;不适应
He was unaccustomed to hard work
他不习惯努力工作
He is not used to hard work
他不习惯艰苦工作
I am unacustomed to being told what to do
我不习惯被告知该做什么
I'm not accustomed to being dictated
我没有听人使唤的刁惯
not usual, normal or familiar
不寻常、正常或熟悉
Abnormal; unusual; unfamiliar
 反常的;不一般的; 不熟悉的
the unaccustomed heat made him weary
不习惯的炎热使他疲倦
The abnormal heat made him weak
反常的炎热令他虚弱无力
opposé 
accustomed
习惯了
unachievable 
无法实现的
that you cannot manage to reach or obtain
你无法达到或获得
Hard to reach; unobtainable
难以达钿的;无法获得的
unachievable goals
无法实现的目标
Difficult to achieve goals 
opposé 
achievable
unacknowledged
not receiving the thanks or praise that is deserved
没有得到应得的感谢或赞美
Not getting the gratitude (or appreciation) that it deserves
未得到应有的感激(或赞赏)的
Her contribution to the research went largely unacknowledged
她对研究的贡献在很大程度上未被承认
Most of her contributions to this research have been ignored
她对这项研究的贡献大都被忽略了
that people do not admit as existing or true; that people are not aware of 
人们不承认存在或真实; 人们不知道
Not recognized as being (or true); not aware of
不被承认存在(或真实)的;未意识到的
Unacknowledged feelings
不承认的感觉
Subconscious feelings
下意识的感情 
not publicly or officially recognized
未公开或官方承认
Not publicly (or formally) recognized; informal
未得到公开(或正式)承认的;非正式的
the unacknowledged  leader of  the group 
未被承认的团体领袖
The leader of this group informally appointed
这个团体非正式任命的首领
Unacquainted
不熟
 ~ (with sth/sb) (formal) not familiar with sth/sb; having no experience of sth
~ (with sth/sb) (正式) 不熟悉 sth/sb; 没有经验
Unfamiliar; no experience
 不熟悉;无经验
visitors unacquainted with local customs
不熟悉当地习俗的游客
Tourists who are not familiar with local customs
不谙当地风俗的游客
opposé
acquainted
unadjusted 
statistics 
of figures 
数字
not adjusted according to particular facts or circumstances 
未根据特定事实或情况进行调整
Unadjusted; before adjustment
未调整的;调整前的
Unadjusted figures which do not take tourism into account showed that unemployment fell  in July.
未将旅游业考虑在内的未经调整的数据显示,7 月份失业率下降
Pre-adjusted figures excluding tourism indicate a fall in the unemployment rate in July。
不含旅游业的调整前数字表明七月份失业率下降
unadorned 
formal
without any decoration 
没有任何装饰
Unadorned; simple
不加装饰的;简朴的
Synonym
simple
the walls were plain and unadorned
墙壁朴素无华
墙壁朴素无华
Unadulterated
纯正的
you use unadulterated to emphasize that sth is complete or total
你用 unadulterated 来强调某事是完整的或全部的
Complete
完全的;十足的;不折不扣的
Synonym
undiluted
For me, the holiday was sheer unadulterated pleasure
对我来说,假期是纯粹的快乐
For me, this holiday is a pleasure to share in words
对我来说,这个假期是言分之苜的赏心乐事
For me, this holiday is a 100% pleasure
对我来说,这个假期是分之的赏心乐事
not mixed with other substances; not adulterated
不与其他物质混合; 没有掺假 
Pure ;not adulterated 
纯的;不掺杂质的 
synonym 
pure
unadulterated foods
纯正的食物
Food that is not adulterated with other substances
未掺杂其他物质的食物
Unadventurous
不冒险的 
 not willing to take risks or try new and exciting things
不愿意冒险或尝试新的和令人兴奋的事情
Unwilling to take risks (or try new things)
 不愿冒险(或 尝试新奇事物)的
Synonym 
Cautious
谨慎
opposé
adventurous
冒险的
unaffected 
不受影响
(by sth) not changed or influenced by sth; not affected by sth 
(by sth) 未受某事改变或影响; 不受某事影响
Unaltered; unaffected; indifferent
未被改变的; 未受影响的;无动于衷的
People’s rights are unaffected by the new law
人民权利不受新法影响
The new regulations do not affect the rights of the people
法规没有影响人民的权利
Some members of the family may remain unaffected by the disease
部分家庭成员可能不受疾病影响
Some people in this family may not be affected by this disease
这家里有的人可能不会受到这种疾病的影响
(approving)
of a person or their behaviour 
一个人或他们的行为
People or their actions
人或其行为
natural and sincere
自然真诚
Sincere and natural; sincere; contrived
真诚自然的;真挚的;示作的
opposé
affected
做作的
unaffiliated 
无关联的
 ~ (with sth) not belonging to or connected with a political party or a large organization
~ (with sth) 不属于或与政党或大型组织有关的
Independent; non-partisan (or organized)
独立的;无党派(或组织)的
Opposé
Independent
Opposé
Affiliated
unafraid 
of sth) 
~ (to do sth)
 (formal) not afraid or nervous; not worried about what might happen
(正式的)不害怕或紧张; 不担心会发生什么
Not afraid; not afraid; not nervous; not scrupulous
不害怕;不畏惧;不紧张;无顾忌
She was unafraid of conflict
她不惧怕冲突
She is not afraid of conflict
她不怕发生冲突
He’s unafraid to speak his mind
他不怕说出自己的想法
He has the courage to speak his heart
他勇于说心里话 
unaided 
没有帮助的
 without help from anyone or anything 
没有任何人或任何东西的帮助
Without foreign aid; alone
援的;独
He can now walk unaided. 
他现在可以独立行走
He can walk alone now
他现能独自行走了
Unalienable
不可剥夺
Inalienable
不可剥夺
Unalloyed
纯合金
formal
 not mixed with anything else, such as negative feelings
不掺杂其他任何东西,例如负面情绪
Innocent
纯真的;纯粹的
Synonym
pure 
unalloyed
纯合金
Pure happiness
纯粹的快乐 
Unalterable
不可改变
Formal
 that cannot be changed
无法改变的
Unchangeable; unchangeable
不可更改的;无法改变的
Synonym 
Immutable
不可变的
the unalterable laws of the universe
宇宙不变的法则
The unchangeable law of the universe
不可改变的宇宙法则 
unaltered 
未改变的
 that has not changed or been changed
没有改变或被改变的
Unchanged
未改变的;未被改变的
this practice has remained unaltered for centuries
这种做法几个世纪以来一直没有改变
This custom has not changed for hundreds of years
这种习俗 已数百年未变