外國人

In a sentence

• 我昨天在餐廳遇到了一位外國人，他從澳大利亞來。

  Yesterday at the restaurant, I met a foreigner; he was from Australia.

  In this context, '外國人' is used to refer to a person from a foreign country.

• 外國人通常對這裡的文化感到非常有趣。

  Foreigners often find the culture here very interesting.

  Here, '外國人' is used to describe a group of people who are not local to the region being discussed.

• 學習一門外國語言讓外國人和本地人之間的溝通更順暢。

  Learning a foreign language facilitates communication between foreigners and locals.

  In this sentence, '外國人' is used to contrast individuals from another country with locals.