spongiopilin

例句：

1. 1. The sponge is a natural material that can be used to make filters and absorbents.
   海绵是一种天然材料，可以用来制作过滤器和吸收剂。
2. 2. Scientists are studying the properties of sponge proteins to find new drugs.
   科学家们正在研究海绵蛋白的性质，以寻找新的药物。
3. 3. The sponge was found in the deep sea, where it lives in colonies and produces a substance that helps protect its environment.
   这种海绵在深海被发现，生活在群落中，并产生一种物质来保护其环境。