On when the unauthorized structure was built, ..........
為何when前面還要加on, 那是一種什麼的表達方法???
求賜教!
收錄日期: 2021-04-23 21:31:27
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120216000051KK01014