children的名词所有格是childrens ;
children是child的复数。
child:n.儿童;小孩;子女;儿子;女儿;深受…影响的人
The children came in two by two.
孩子们一对一对地走了进来。
He has a way with small children.
他很会逗小孩。
How many children do you have?
你有几个孩子?