It's a present for one of my children.
这是送给我的一个孩子的`礼物。
The children are at different stages of development.
这些孩子处于不同的成长阶段。
It's only human to want the best for your children.
为自己的孩子谋求最好的条件是人之常情。
Mark has two children to support from his first marriage.
马克得扶养他第一次婚姻生的两个孩子。
Many children can't function effectively in large classes.
