你对他很了解吗 Do you know he ; Do you know about him
对他很了解
I know him very well
以上为机器翻译结果，长、整句建议使用 人工翻译 。
妈妈：看起来你对他很了解呀。
Mom: It seems that you know much about him.
youdao
自他住在我们附近以来，我对他很了解。
I know him very well since he has lived here near us.
我同赵树理愉快地渡过了两天，可是我不认为我对他很了解。
I spent two enjoyable days with Chao, but I do not think I ever understood him.
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