This is the 8201st most frequent Chinese word.
foreign
"Foreign" in Chinese ("外国") refers to something or someone from a country other than one's own.
In this sentence, '外国' is used as an adjective to describe the restaurant, emphasizing its origin from another country.
这是一家著名的外国餐厅。
This is a well-known foreign restaurant.
Here, '外国' acts as a descriptor for '文化', indicating the cultures are from outside the native country.
他喜欢研究外国文化。
He likes studying foreign cultures.
In this sentence, '外国' modifies '语言', defining the languages as those not native to the speaker's country.