water tap,gas taps and eletric sockets are examples of ___________.
beakers,test tubes and droppers are examples of ____________.
系咩呀,谢谢噢
收錄日期: 2021-04-23 23:28:59
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130913000051KK00138