古柯

例句：

1. 1. He was caught with a small amount of cocaine in his possession.
   他被发现携带少量可卡因。
2. 2.Cocaine is a highly addictive drug.
   可卡因是一种高度上瘾的药物。
3. 3.The police found the drugs hidden in his backpack.
   警方在他的背包里发现了毒品。