Stepsisters
n. （继父与其前妻或继母与其前夫所生的）姐姐, 妹妹( stepsister的复数形式 )
🗣️ 情景例句
What dorm do you live in?
你住在那个宿舍？
Know something like the palm of one's hand.
熟知其事，了如指掌。
It was your turn to wash them yesterday.
昨天轮到你把它们洗干净。