问题描述: didn't notice 与 wasn't noticing 的区别 1个回答 分类:综合 2014-12-03 问题解答: 我来补答 看上下文,一个表示动作,一个表示存现.如:i didn't notice the keybroad.i wasn't notice the keybroad.前一个是没有看的动作,后一个是没有看的情形. 展开全文阅读