■ You wait in the departure lounge and when your flight

is boarding (=is ready for passengers to get on) you leave the terminal from a gate.

departure lounge指候机室，登机（board)时从登机口（gate)离开

航空站:

Flight 7X123 to Sydney is now boarding at gate 14.

飞往悉尼的ZX123号班机现在正在14号登机口登机。

■ You need to show your boarding card / boarding pass in order to board (=get on) the plane.

登机（board)时须出示登机卡（boarding card / boarding pass)。

■ When you arrive at your destination in a different country you disembark and go through immigration. Collect your luggage from baggage reclaim and exit through customs.

到达异国目的地下^(disembark：)后要通过移民局检查站 (immigration)。在行李提取处（baggage reclaim)领取行李，然后 通过海关（customs)离开。