a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water)
造句
用作名詞(n.)
All the chlorine atoms have already found partners. 所有的氯原子都已找到了配對的伙伴。
Common salt is a compound of sodium and chlorine. 食鹽是鈉和氯的化合物。