Making a Road

Making a Road

铺路

These machines make roads. All the machines have a job to do.

这些机器修路。 所有的机器都有自己的工作。

This machine makes a track for the road. This machine makes a hole for the pipes.

这台机器在路上留下了痕迹。 这台机器为管子打了一个孔。

This machine makes the track flat. The road will go here.

这台机器使轨道平整。 这条路会通到这里。

This big truck takes the earth away. More trucks bring big stones. They tip the stones over the road.

这辆大卡车把土运走。 更多的卡车运来大石头。 他们把石头倒在路上。

This machine rolls over the stones. It makes them flat. This truck brings small stones and tar.

这台机器在石头上滚动。它使它们变平。 这辆卡车运来小石头和柏油。