speed limit sign

例句：

1. 1. Thespeed limit sign is clearly marked on theroadside.
   路边清楚地标有速度限制标志。
2. 2. The driver ignored the speed limit signand drove at a high speed.
   司机无视速度限制标志，以高速行驶。
3. 3. Thepolice officer stopped the car because of thespeed limit sign.
   警察因速度限制标志而拦停了那辆车。