『 Pure water is an odorless, tasteless liquid. It has a bluish tint, which may be detected, however, only in layers of considerable depth. 』
http://encarta.msn.com/encyclopedia_761573158/Water.html#s2
收錄日期: 2021-04-12 21:29:08
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070416000051KK02296