It's only human to want the best for your children.

　　為自己的孩子謀求最好的條件是人之常情。

　　Mark has two children to support from his first marriage.

　　馬克得扶養他第一次婚姻生的兩個(gè)孩子。

　　Many children can't function effectively in large classes.

　　許多孩子在大班上課時(shí)學(xué)習效果不好。

　　The children are completely out of control since their father left.

　　這些孩子自他們的父親離開(kāi)后就無(wú)法無(wú)天了。

　　They've been best friends since they were children.

　　他們從孩提時(shí)起就是最要好的朋友。