标题: difference between "can" and "be able to" [打印本页] 作者: bjerik 时间: 2003-11-12 14:49 标题: difference between "can" and "be able to" who can tell me difference between "can" and "be able to"?作者: lixiaoyang 时间: 2003-11-12 16:33
be able to 强调进过了一段努力才达到，can说明有能力做