seat belt
柯林斯词典
1. N-COUNT A seat belt is a strap attached to a seat in a car or an aircraft. You fasten it across your body in order to prevent yourself being thrown out of the seat if there is a sudden movement or stop. (汽车、飞机座椅上的) 安全带
The fact I was wearing a seat belt saved my life. 我系着安全带，幸免于难。
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