A puma at large的疑问新概念第三册的第一课题目是 'A puma at large',为什么不是 'A puma is at large'?课文的最后写的是 ...a puma is still at large.还是题目是A puma (which is) at large的省略?

问题描述:

A puma at large的疑问
新概念第三册的第一课题目是 'A puma at large',为什么不是 'A puma is at large'?课文的最后写的是 ...a puma is still at large.还是题目是A puma (which is) at large的省略?