Researching these substances is important, Castiglioni said, "because [these] are quite unknown contaminants, and they are present in the environment in huge amounts, especially for pharmaceuticals."

研究这些物质是非常重要的，卡斯蒂格利奥尼说：“因为这是些未知的污染物，尤其是药物，已经大量存在了。”

youdao

Researching these substances is important, Castiglioni said, "because [these] are quite unknown contaminants, and they are present in the environment in huge amounts, especially for pharmaceuticals."

研究这些物质是非常重要的，卡斯蒂格利奥尼说：“因为这是些未知的污染物，尤其是药物，已经大量存在了。”

youdao