washing-soda

例句：

1. 1. She uses washing-soda to clean her clothes every day.
   她每天使用洗衣粉来清洗衣服。
2. 2. The cleaning agent is a mixture of washing-soda and water.
   清洁剂是一种洗衣粉和水的混合物。
3. 3. The soapy water was the best way to clean my dirty clothes.
   肥皂水是我清洗脏衣服的最好方法。