了解 vs 理解

To know of vs. to comprehend: 了解 is acquaintance, 理解 is grasp.

了解

liǎojiě ㄌㄧㄠˇ ㄐㄧㄝˇ

to understand; to know about; to learn about; to find out

我无法让别人了解我的意思。

I couldn't make myself understood.

理解

lǐjiě ㄌㄧˇ ㄐㄧㄝˇ

to comprehend; to understand

他说的我还是没有全部理解。

I still don't understand everything he says.

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