英语语法分析

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。

"You don't need a seatbelt," said the driver, and screeched into traffic.

司机一边告诉我不用戴安全带，一边轰着油门将车驶入车流。

Optimise your efficiency and maximise savings by securing your seatbelt first.

通过保证先绑好安全带，你可以达到最佳的效率和节约。