Examples
nǐ你zhōng wén中文zhēn真hǎo好，dōu都néng能yǐn yòng引用sú yǔ俗语le了。
你中文真好，都能引用俗语了。
Your Chinese is so good, you can quote proverbs.
我大部分能听懂他们说的话，但是听不懂他们说的俗语。
I can understand most of what they say, but I don't understand the slang they use (in their speech).