1.chemical
2.accident
3.corrosive
4.explosive
5.toxic
6.harmful
7.flammable
8.irritant
9.bunsen flame
收錄日期: 2021-05-03 05:24:31
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070923000051KK01213