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(yǎng)他第一次婚姻生的兩個孩子。

　　Many children can't function effectively in large classes.

　　許多孩子在大班上課時學(xué)習(xí)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后就無法無天了。

　　They've been best friends since they were children.

　　他們從孩提時起就是最要好的朋友。