The members of an extended family are related by blood (grandparent, parents, children, brothers, sisters, etc.) or by marriage (husbands, wives, mothers-in-law, etc).

大家庭的成员由血缘(祖父母、父母、孩子、兄弟、姐妹等)或婚姻(丈夫、妻子、婆婆等)联系起来。

youdao

Our harvest crew includes my two brothers, my dad, mom, wife, sisters-in-law, son-in-law, daughter, and three nephews.

我们的收割队伍包括我的两个兄弟，我的父亲，母亲，妻子，弟媳，女婿，女儿和三个侄子。

youdao

All nine mothers of the sickly infant girls say they want sons - to look after them when they get old, because their sisters-in-law have more sons, because their mothers-in-law demand male children.

9个瘦弱女婴的母亲都说她们想要的是儿子—在她们年老时照顾她们，因为她们的姑嫂生下的儿子比女儿多，因为她们的婆婆要的是男孩。

youdao

Fire is the tale of two beautiful middle-class sisters-in-law who fall in love with each other.

CNN: BURNED BY HOME FIRES

Hasham spent an entire night trapped under the rubble, along with the bodies of her father, her two sisters-in-law and six of her nieces and nephews.

NPR: Grief and Anger Follow Deadly Qana Bombing

Light and Hecht, who play sisters-in-law, are the spine of the show, and only a few of the other characters take the jump in time with them.

WSJ: Review: 'The Assembled Parties' a terrific drama