1、Calgon is a popular brand of water softener that helps prevent limescale buildup in your appliances.
Calgon是一种受欢迎的软水剂品牌，可帮助防止您的电器积垢。

2、I always use Calgon in my washing machine to protect it from hard water damage.
我总是在洗衣机中使用Calgon来保护它免受硬水的损害。