noun 下载 🔗分享 酯 A compound most often formed by the condensation of an alcohol and an acid, with elimination of water, which contains the functional group carbon-oxygen double bond joined via carbon to another oxygen atom. Examples : "The sweet smell of many fruits, like bananas and apples, is due to the presence of esters. " 许多水果,比如香蕉和苹果,那股甜甜的香味就是因为含有酯类的缘故。 compound substance chemistry biochemistry 与AI对话词汇游戏阅读练习