照顾他的妹妹
his sister───他的妹妹
look after───照顾; 照料; 料理; 打理；照顾；关心；目送
look up look after───看，照顾
look after it───照顾好它
look well after───好好照顾
look after you───照顾好你
look at his───看看他的
look after him───照顾他
look after her───照顾她
So he not go to school. Stay at home look after his sister with his mother.───因为他还小，所以没有上学，就待在家里帮妈妈看着小妹妹。
He often helps his mother look after his little sister.───他经常帮助他的妈妈照顾他的小弟弟。
Beacuse he is young, so he doesn't go to school, he stays home help his mother to look after his sister.───因为她还小，所以没有上学，就待在家里帮妈妈看着小妹妹。
He had to look after his sister yesterday.───他昨晚只得照顾他姐姐。
Tom has to stay at home to look after his sister.───汤姆不得不呆在家里照顾他的妹妹。
Because he is young , so he is not go to school, he stayed in home help his mother look after his sister.───经常让客人看她。因为他还小，所以没有上学，就呆在家里帮妈妈看着小妹妹。