他们[tā men]

they

He is not half such a fool as they think. 

他远不是他们以为的那么傻。

I felt bloated after the huge meal they'd served. 

吃过他们提供的大餐后，我觉得肚子胀得很。

At that time they had been courting for several years. 

当时他们已经谈了好几年的恋爱了。

The farther north they went, the colder it became. 

他们愈往北去，天气就变得愈冷。