- 越来越多的环保者开始宣传和使用环保的无铅汽油的汽车。
More and more environmentalists advocate and use environmentally friendly unleaded petrol in cars.
- 汽车准备好了。
The car is ready.
- 水沸腾后变为蒸汽。
Water turns into steam when it is boiled.
- 汽车的数量在增长。
The number of cars is on the increase.
- 在美国，汽车靠右行驶。
In America cars drive on the right side of the road.
- 当水被加热时，水汽蒸发。
Water evaporates when it is heated.
- 我们乘公共汽车去上学。
We go to school by bus.
- 公共汽车上发生了什么事？
What happened on the bus?
- 到机场去的汽车在哪里可上？
Where do I get an airport bus?
- 我们在那里上了公共汽车。
We got on the bus there.
