Look in Bolivia and Peru, where all sorts of products made from the coca leaf, the source of cocaine, are sold legally over the counter with no apparent harm to people's public health.
看看玻利维亚和秘鲁， 各种由古柯叶制成的产品， 就是可卡因的原料 都在柜台上合法地销售 这样做并没有对人们的健康带来明显的危害。