如发生交通意外或天灾，洁净队亦负责紧急清理工作。

The squads also undertake urgent clearance operations in the event of traffic accidents or natural disasters.

youdao

慕尼黑的一场实验表明装有刹车防抱死系统的出租车发生交通意外的几率并没有比普通的出租车少，原因就在于他们的安全防范意识降低了。

An experiment in Munich found that the drivers of taxicabs fitted with anti-lock braking systems were involved in no fewer accidents than those without.

youdao

如果有意外的事情发生，比如交通堵塞或突然下雨，你会怎么做？

What will you do if anything unexpected happens, like heavy traffic or a sudden rain?

youdao