Too many people in the States are overweight./超重的美国人太多了。

A: You're not overweight or fat!

A: 你可不胖!

B: No, not me. But most of my family are a bit overweight.

B: 我是不胖。但是我家时里多数人都有点儿胖。

A: You should come to the States.

A: 你应该去美国。

B: What do you mean?

B: 为什么?

A: Many, many people, too many people in the States are overweight. Seriously overweight.

A: 超重的美国人真是太多太多了。严重地超重。

B: Yes. I've seen pictures of some very large people!

B: 是的，我在照片上见过一些块头非常大的人！

Notes 注释

1. You can criticise¹ the way people look by using words like overweight, for example: Most of my family are a bit oveweight.
你可以用overweight (超重) 这样的词语来批评人的相貌，例如：Most of my family are a bit overweight. (我家里多数人都有点儿胖。)

2. You can generalise further by talking about a whole country, for example: Many, many people, too many people in the States are overweight.
你可以更进一步概括某个国家的情况，例如：Many, many people, too many people in the States are overweight. (超重的美国人真是太多太多了。)