1.chemical
He is experimenting with a new chemical.
他正在實驗一種新的化學製品。
2.accident
The discovery was a happy accident.
這一發現出人意料,令人高興。
3.corrosive
無
4.explosive
Gasoline fumes are highly explosive.
氣態汽油極其易爆。
5.toxic
無
6.harmful
Smoking is harmful to health.
吸煙有害健康。
7.flammable
無
8.irritant
無
9.bunsen flame
無
1=]The raw sewage is chemically treated.
2=]He was killed in an accident .
3=]Unemployment is having a corrosive effect on our economy.
4=]The explosive growth of the export market.
5=]Many pesticides are highly toxic.
6=]The sun's harmful ultra-violet rays.
7=]Highly flammable liquids.
8=]The presence of the army has been a constant irritant.
9=]Bunsen flame is an instrument used in scientific work that produces a hot gas flame.