例句：

　　他們被勸不要同外國人成為密友。

　　They are discouraged from becoming close friends with foreigners.

　　這是一個禁止外國人入內的地區。

　　This was a forbidden area for foreigners.

　　從她的穿著就可以看出她是外國人。

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