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