外国用英语可以翻译为 "foreign country". 来源是拉丁语的外国词 "foreignis"，意为 "belonging to another country".

例句：

I'm from a foreign country. 我来自一个外国。

She has traveled to many foreign countries. 她已经去了许多外国旅行。

Foreign countries often have different customs and traditions. 外国往往有不同的习俗和传统。