colloquial 托福专八

They have little acquaintance with colloquial English.

他们对英语会几乎窍不通。

It’s hard to understand the colloquial idioms of a foreign language.

外语里的口头习语很难懂。

The word "Knickerbocker", a Dutch surname, is used as a colloquial term for New Yorkers descended from the original Dutch settlers.

而荷兰的姓氏“尼克伯克尔”则成为俗语，用来指那些祖辈是荷兰移民的纽约人。