马路上交通极为拥挤，所以车辆往来以每小时十公里的速度慢行。

The roads were very busy so traffic crawled along at ten miles an hour.

youdao

用于指示缓慢行驶或停滞的交通车辆。

Designed to direct traffic around slow moving or stopped vehicles.

youdao

用于指示缓慢行驶或停滞的交通车辆。

Designed to direct traffic around slow moving or stopped vehicles.

youdao