更新1:
20.xxx 21.xxx 22. 4(y-1.6) = 5.6
20.xxx 21.xxx 22. 4(y-1.6) = 5.6
收錄日期: 2021-04-19 00:50:49
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080405000051KK02863