善行繁
added Category:330 物理學總論 using HotCat
10:39
+33
added Category:320 天文學總論 using HotCat
10:38
+34
無編輯摘要
+208
创建页面，内容为“File:灰尘111.jpg|缩略图|右|[https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fs14.sinaimg.cn%2Fmiddle%2F4f363cbagaeeaa8fa3a4d%26690&refer=http%3A%2F%2Fs1…”
10:13
+4,890