Changes in Transportation
交通运输的变化
Transportation in the past was different from the transportation in the present.
过去的交通运输不同于现在的交通运输。
In the past, people used a horse, wagon and steamboat to move around.
过去，人们用马、马车和汽船四处走动。
People in the past would also ride bicycles.
过去的人也会骑自行车。
The invention of the engine changed transportation.
发动机的发明改变了交通。
The engine was a new technology.
发动机是一项新技术。
Technology has made transportation faster and safer.
技术使运输变得更快、更安全。
Airplanes and cars are machines with an engine.
飞机和汽车是有引擎的机器。
The bicycle is a machine with no engine, but people still use it today.
自行车是一台没有引擎的机器，但今天人们仍然使用它。
It is good for moving short distances, but cars and airplanes are better to travel long distances.
短距离移动很好，但是汽车和飞机最好长途旅行。