krecalvin

例句：

1. 1. The krecalvin is atype of edible fungus thatgrows on the bark of trees.
   克瑞卡尔文是一种在树木的树皮上生长的可食用真菌。
2. 2. Krecalvin is used in traditional Chinese medicine totreat various ailments.
   克瑞卡尔文在中国传统医学中用于治疗各种疾病。
3. 3.In recent years, scientists have discovered newways to extract and use krecalvin from natural sources.
   近年来，科学家们发现了从自然来源提取和使用克瑞卡尔文的新方法。