名詞 cl:

1. 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)
   同義詞：chlorine, Cl, atomic number 17
2. a metric unit of volume equal to one hundredth of a liter
   同義詞：centiliter, centilitre, cl