1.作状语

They were sitting round the kitchen table.

他们正围着餐桌坐着。

Suddenly a car came round a corner on the opposite side.

突然一辆汽车绕过对面的街角冲了过来。

John handed round the plate of sandwiches.

约翰把那盘三明治传给了大家。

That was for a design built round an existing American engine.

那是用在一种以现存的美国发动机为基础的设计之上的。

The core of the Festival's programme centers round performances of new and 20th century work.

这个节日的节目的核心是以表演新作和二十世纪作品为主。

I am about two inches larger round the waist.

我的腰围大概粗了两英寸。

I go to bed round 11:00 at night.

我大概晚上11点上床睡觉。

2.作定语

He happens to own half the land round here.

他碰巧拥有这里周围一半的土地。

I think he has earned the respect of leaders all round the world.

我认为他已经赢得了世界各国的领导的尊重。

Don't just immediately give up but think about ways round a problem.

不要马上放弃，而是想想解决问题的方法。

round 的用法近似于around,但是round的词性比较多，可以是名词，动词，形容词，副词，和介词。