Cranes

Cranes!

起重机！

Look at the cranes.

快看这些起重机呀。

Some things are too big for people to pick up, but cranes can do it. Cranes help people do big jobs.

有些东西太重了，人类搬不动，但是起重机可以做到。 起重机能帮人们干重活儿。

A crane has many parts.

起重机有很多组成部分。

The arm on a crane can move up and down and left and right. The arm has big blocks at one end. The blocks keep the crane from tipping over as it lifts things.

起重机的吊臂可以上下左右移动。 吊臂的一端装着很重的配重块。 这些配重块能防止起重机吊东西的时候翻倒。

The arm has a strong cable inside it. The cable has a hook at the end. The hook holds the load.

吊臂里面装着很结实的钢缆。 钢缆的末端有一个吊钩。 吊钩用来挂要吊运的货物。