foreign是单数还是复数

词性是形容词，“外国的”，不分单复数，例如：

1、She didn't know what life in a foreign country would be like.她不知道外国的生活会是什么样。

2、She had a visceral dislike of all things foreign.凡是外国的东西，她都打心眼儿里讨厌。