elastic band
A. 重金属乐队
B. 塑料口袋
C. 弹力带子，松紧带
D. 真皮腰带
现在我们将向大家介绍安全须知。
A. Now we would like to introduce to you the cabin crew.
B. Now we would like to explain to you the safety instruction.
C. Now we would like to serve you the beverages.
D. Now we would like to show you the duty-free products.
Fasten Seat Belt sign
A. 快速解开安全带
B. 请尽快就座
C. 唱歌速成讲座
D. 系好安全带指示灯
air turbulence
A. 空气稀薄
B. 空气清新
C. 空气流动
D. 气流颠簸
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