A medicinal chemistry campaign, in conjunction with a chemical mutagenesis program, was thus launched at Merck &Co. to develop (+)- 1 as a novel anti-flea therapeutic agent for companion animals.是什么意思_A medicinal chemistry campaign, in conjunction with a chemical mutagenesis program, was thus launched at Merck &Co. to develop (+)- 1 as a novel anti-flea therapeutic agent for companion animals.在线翻译_英语_读音_用法_例句