noun 下载 🔗分享 雌激素,动情素 Any of a group of steroids that are secreted by the ovaries and function as female sex hormones. Examples : "My mother's doctor said her low levels of estrogen were causing some physical changes. " 我妈妈的医生说,她体内雌激素水平过低,导致了一些身体上的变化。 physiology medicine biology biochemistry sex body organ function science anatomy 与AI对话词汇游戏阅读练习