当警察冲过来时，人群便散开了。

The crowd scattered when the police charged.

youdao

当救护车开来时，警察叫我们让开。

The police told us to stand clear as the ambulance arrived.

youdao

路人赶紧叫救护车，当救护车来时交通警察也抵达来处理车祸了。

A passerby hurriedly called an ambulance. No sooner had the ambulance arrived then the police also arrived to deal with the accident.

youdao

路人赶紧叫救护车，当救护车来时交通警察也抵达来处理车祸了。

A passerby hurriedly called an ambulance. No sooner had the ambulance arrived then the police also arrived to deal with the accident.

youdao