Three of the Andean countries that had been affected by significant illicit coca bush cultivation, coca refining and trafficking have achieved encouraging results in curbing those problems over the past few years.
在过去几年中，三个受大规模非法古柯树种植、古柯提纯和贩运影响的安第斯国家在遏制上述问题上取得了令人鼓舞的成果。