记录工作、生活感悟
2009-01-25 20:22:13| 分类: 默认分类 | 标签: |举报 |字号大中小 订阅
用微信 “扫一扫”
将文章分享到朋友圈。
用易信 “扫一扫”
NASA hopes to solve the riddle of this spectacular phenomenon.
non-scientific thing can use plural as phenomenons,otherwise use phenomena ,
Question 1
Why use "while auroras are increasingly well understood?
Why use \"while auroras are increasingly well understood?
推荐过这篇日志的人:
他们还推荐了:
网易公司版权所有 ©1997-2018
评论