brother-in-law

n. /ˈbrʌðər ɪn lɑː/ B2

内兄；姐夫；妹夫

The brother of your spouse or your sister's husband.

仙境例句

The Fish-Footman was the frog's brother-in-law, for he had married the frog's sister.

鱼仆人是青蛙的姐夫，因为他娶了青蛙的姐姐。