ephedra alkaloid

例句：

1. 1. Aphedra is a type of opium that has been used for centuries to treat pain.
   阿芙蓉是一种用于治疗数百年的鸦片，用于缓解疼痛。
2. 2.The opium trade was a major industry during the colonial era in India.
   鸦片贸易是印度殖民时代的主要产业。
3. 3.Morphine is a synthetic opioid drug that is often used as an alternative to opium.
   吗啡是一种合成的阿片类药物，通常用作鸦片的替代品。