hordatine

例句：

1. 1. The drug was found to be a potent anti-cancer agent.
   这种药物被发现是一种强大的抗癌剂。
2. 2. Hordatine is a rare mineral that can be found in certain parts of the world.
   霍达坦是一种稀有矿物，可以在世界的某个地方找到。
3. 3. Hordatine has been used in traditional medicine for centuries.
   霍达坦在传统医学中被使用了几个世纪。