I do not really understand him.

我不是很懂他。

youdao

I do not really understand him, do not like tea.

我不是很懂他的话，也不喜欢喝茶。

youdao

I really couldn't understand him.

他这团体我真不清楚。

youdao

You don't really understand him, at least I don't.

你不能真正了解他，至少我做不到。

youdao

You don't really understand him, at least I don't.

你不能真正了解他，至少我做不到。

youdao