Tens of thousands of students wewe present at the meeting on

问题描述:

Tens of thousands of students wewe present at the meeting on May 4th.两个数次后面为什么都要加s?
1个回答 分类: 英语 2014-09-30

问题解答:

我来补答
tens of thousands of 成千上万;好几万
固定短语
展开全文阅读
上一页:pass..
下一页:复合函数求值域