Definition: the man married to your sister or the brother of your husband or wife Level: B2
今天是我姐夫的生日。
It's my ___brother-in-law's birthday today.
我姐夫下周要来看我们。
My ___brother-in-law is coming to visit us next week.
她把她的姐夫介绍给了家人。
She introduced her ___brother-in-law to the family.
