我知道你的一切我了解你的所有
[wŏ zhī dào nĭ de yī qiè wŏ le jiĕ nĭ de suŏ yŏu]
Translated as 'I know everything about you; I understand all that you are', indicating someone with a claim of deep understanding or closeness toward another, sometimes suggesting intimacy or a comprehensive knowledge of someone else's circumstances.