问题描述： I am not sure yet同义句I am not sure yet=? 1个回答 分类：英语 2014-10-23 问题解答： 我来补答 I can't be sure yetI'm not certain yetAt this time,I can't be sureAt this time,I can't be certainI'm not positiveI don't have a definite answer yet 展开全文阅读
