Brother-in-law
01
姐夫, 妹夫
the person who is the brother of one's spouse
例子
His brother-in-law became like a brother to him after he married his sister.
他的姐夫在他娶了他的妹妹后变得像他的兄弟一样。
1.1
姐夫
the person who is the husband of one's sibling
1.2
姐夫/妹夫
the person who is the husband of one's spouse's sibling
