洋垃圾外国人英语怎么写

例句：

他们被劝不要同外国人成为密友。

They are discouraged from becoming close friends with foreigners.

这是一个禁止外国人入内的地区。

This was a forbidden area for foreigners.

从她的穿着就可以看出她是外国人。

You could tell she was foreign by the way she dressed.