sponge
/spənʤ/
a porous mass of interlacing fibers that forms the internal skeleton of various marine animals and usable to absorb water or any porous rubber or cellulose product similarly used
中文释义：海绵；海绵状物
Use a damp sponge to clean the kitchen counter thoroughly.
用湿海绵彻底清洁厨房台面。
The sponge cake absorbed the syrup and became very moist.
海绵蛋糕吸收了糖浆，变得非常湿润。