名词连襟; 内兄，内弟; 大伯，小叔; 姐夫，妹夫

名词

1. They are both my brothers-in-law.
他们两个都是我的妻舅。

1. 大伯子；小叔子；内兄；内弟；姐夫；妹夫；连襟
Someone's brother-in-law is the brother of their husband or wife, or the man who is married to their sister.

noun

1. a brother by marriage