Look left and right before you cross the road.

左右看一看，然后再过马路。

You mustn't cross the road.

你不能穿过马路。

After you get off the bus, cross the road and walk straight on.

你下车后，穿过马路，一直往前走。

You can't cross the road—it's like a racetrack.

那条马路像赛车道一样，你不要横过那条马路。

The traffic light tells us when to cross the road.

交通信号告诉我们何时穿越马路。