can和be able to 的区别
问题描述：
can和be able to 的区别
答
can 与 be able to 均可表示某人做某事的能力,常可互换.例如：I'm not able to [can't] explain this. 我不能解释这个问题.He was able to [could] speak French very well. 他的法语讲得很不错.但是两者还是有区别...