cholohematin

例句：

1. 1.The choloematin is a rare and valuable substance found in the ocean.
   这种稀有且有价值的物质存在于海洋中。
2. 2. The choloematin has been used for centuries to treat various diseases.
   这种物质被用于治疗各种疾病数百年。
3. 3. The discovery of choloematin has sparked renewed interest in marine biology.
   发现这种物质引发了对海洋生物学的新一轮兴趣。