1+2+3+4+5...............................1000=?
更新1:
+1000+2000=?
+1000+2000=?
收錄日期: 2021-04-23 18:22:13
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090723000051KK00865