常见例句Keywords mercapto 5 difluoromethoxy 1H benzimidazole;4 acetamidophenol;monochlorodifluoromethane; 巯基-5-二氟甲氧基苯并咪唑;对乙酰氨基苯酚;一氯二氟甲烷; 返回 acetamidophenol