1·I was wearing a seatbelt. If I hadn't been wearing one, I would have been injured.
我当时系着安全带。如果我没有系着它，我就会受伤了。
2·May I unfasten my seatbelt, now?
我现在可以解开安全带吗？
3·I can't open the seatbelt.
我打不开安全带。
4·I started wearing my seatbelt again.
我又开始系安全带了。
5·Now put on your seatbelt, we're ready to go.
现在系好你的安全带，我们准备出发了。
6·Wearing seatbelt is almost second nature to me.
系安全带几乎是我的第二天性。
7·Please fasten your seatbelt. We will take off shortly.
请系好安全带。我们马上就要起飞了。
8·Stwardess: Please return to your seat and fasten your seatbelt.
女乘务员：请回到您的座位上，系好安全带。
9·Do not unfasten the seatbelt before the plane stops completely.
在飞机纯粹停止前，不要松开安全带。
10·The law requires everyone put on their seatbelt while in the car.
法律规定坐在车上的人需要系安全带。