zhī dào
他知道的事情很多
tā zhī dào de shì qíng hěn duō
He knows a lot of things
虽然他没明说，我也知道他的意思。
suī rán tā méi míng shuō, wǒ yě zhī dào tā de yì si
Although he didn't say it explicitly, I still know what he means