Traveling by Air 
boarding check 登机牌
plane ticket 飞机票
flight, flying 飞行
bumpy flight 不平稳的飞行
smooth flight 平稳的飞行
ramp 扶梯
altitude, height 高度
air route, air line 航线
extra flight 加班
economy class, tourist class 经济座
non-stop flight 连续飞行
climbing, to gain height 爬升
circling 盘旋
forced landing 迫降
connecting flight 衔接航班
speed, velocity 速度
ceiling 上升限度
cruising speed 巡航速度
top speed 最高速度
first class 头等
night service 夜航
airsick 晕机
direct flight, straight flight 直飞
landing 着陆
to rock, to toss, to bump 颠簸
to taxi along 滑行
to lose height, to fly low 降低
to take off, take-off 起飞
to board a plane, get into a plane 上飞机
to get off a plane, alight from a plane 下飞机
to face the wind 迎风