noun 下载 🔗分享 胎盘绒毛，子叶。 Each of the patches of vili on the foetal chorion in the placenta of ruminants and some other mammals. Examples : "Veterinarians examined the cow's placenta closely, noting the healthy development of the cotyledons, crucial for nutrient transfer to the calf. " 兽医仔细检查了母牛的胎盘，并记录了胎盘绒毛，也就是子叶的健康发育情况，这对于向小牛输送营养至关重要。 anatomy physiology biology animal organ 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 子叶 The leaf of the embryo of a seed-bearing plant; after germination it becomes the first leaves of the seedling. Examples : "The bean seedling pushed its way through the soil, and two small, rounded cotyledons emerged, acting as its first leaves. " 这颗豆苗奋力钻出土壤，露出了两片小小的、圆圆的子叶，充当它最初的叶子。 biology plant seed vegetable agriculture 与AI对话词汇游戏阅读练习
