海绵质的

例句：

1. 1. The sponge is so soft that it can soak up water easily.
   这块海绵非常软，很容易吸水。
2. 2.The sponge was used to clean the floor before it was replaced with a new one.
   这块海绵被用来清洁地板，然后换成了新的。
3. 3. The sponge was too soft to be used as a tool for cleaning.
   这块海绵太软，不适合作为清洁工具。