aging rats

• 衰老大鼠

aging rats的用法和样例：

例句

1. ConclusionTraditional Chinese medicine Tiannianyin can improve the spermatogenic function of aging rats, and has fairly anti-aging effects.
   结论中药天年饮可改善衰老大鼠的生精功能，具有一定延缓衰老的作用。