him在一个句子中作宾语，是一个动作的接受者。
例句：
I send a book to him.我寄了一本书给他。
His girlfriend broke up with him.他女朋友跟他分手了。
This is so hard to him. 这对他来说太难了。
his有两个意思，一是“他的”的意思，后面一般加名词，表示“他的`……”。
例句：
His mama loves him very much.他妈妈非常爱他。
This is his book,I don't know what it's about.这是他的书，我不知道这是关于什么的书。
We can borrow his car to travel.我们可以借他的车去旅行。