Chlorea

例句：

1. 1. The chemical reaction produces chlorine gas.
   化学反应产生氯气。
2. 2. Chlorine is a common component of many household cleaning products.
   氯是许多家庭清洁产品常见的成分。
3. 3.In the process of purifying water, chlorine is often used to kill bacteria and viruses.
   在净化水的过程中，通常使用氯来杀灭细菌和病毒。