Examples
guò过mǎ lù马路de的shí hou时候,nǐ你bì xū必须xiǎo xīn小心chē liàng车辆。
过马路的时候,你必须小心车辆。
In crossing the street, you must watch out for cars.
这条路上的车辆不多。
There is not much traffic on this road.
车辆增多会影响到城市的环境。
An increase in the number of cars will affect the urban environment.