[求助]天山新题4

greenbow43

以下是引用tigar在2005-8-9 12:08:00的发言：

在本坛上找到另一个句子:

He fought the wolf，a stick his only weapon．他和狼搏斗着，唯一的武器是一根棍棒。

Child care already a solid part of the employee benefits package at many companies, more businesses are focusing on a newer family benefit known as elder care, servicing for older dependents.

请问这里与A有什么区别啊?

同问A为什么不对

with引导独立主格时候什么时候可以省略什么时候不能省略？