妈妈不在的时候，山姆得照顾他妹妹。
Sam has to look after his little sister while his mom is away.
妈妈不在家时，张兰通常在家照顾她的弟弟。
Zhang Lan usually takes care of her little brother at home when her mother is away.
妈妈不在家时，这两姐妹将照看她们的小弟弟。
The two sisters will look after their baby brother when their mother isn't at home.
应用推荐