Indeed. Now, slang, as we've said, is colloquial – or informal – language. And it's characteristic of specific social groups.

没错，我们所说的俚语是一种白话，也就是非正式的语言。是特殊社会群体的特征。

While the Romans wrote in classical Latin, they conversed in vulgar Latin — colloquial, everyday language that was used between soldiers and in trade.

虽然罗马人用古典拉丁语写作，但他们用通俗的拉丁语交谈——士兵之间和贸易中使用的口语和日常用语。

Say, if you speak in a formal register of Japanese with many honorifics when addressing your boss versus the more colloquial language you may use with your pals.

比方说，如果你在与老板交谈时使用正式的日语并带有许多敬语，而不是你可能与朋友使用的更口语化的语言。

Up-stairs he found a letter waiting for him. It was a mimeographed notice urging " the boys" in condescendingly colloquial language to pay the dues of the American Legion.

他在楼上发现一封信在等他。这是一张油印的通知，用居高临下的口语敦促“男孩们”缴纳美国退伍军人协会的会费。