noun 下载 🔗分享 酮，酮类。 A homologous series of organic molecules whose functional group is an oxygen atom joined to a carbon atom—by a double bond—in a carbon-hydrogen based molecule. Examples : "The sweet, fruity smell in the nail polish remover indicates the presence of a ketone, likely acetone. " 指甲油卸妆水里那种甜甜的水果香味表明它含有一种酮类物质，很可能是丙酮。 compound substance chemistry biochemistry 与AI对话词汇游戏阅读练习
