反刍动物及其他一些哺乳动物胎盘胎儿绒毛膜上的绒毛丛。
cotyledons — plural of cotyledon
种子植物胚的叶片；萌发后成为幼苗的最初叶片。；寇太来顿属植物；[医] 绒毛叶; 子叶(植物)
反刍动物及其他一些哺乳动物胎盘胎儿绒毛膜上的绒毛丛。
Each of the patches of villi on the foetal chorion in the placenta of ruminants and some other mammals.
种子植物胚的叶片；萌发后成为幼苗的最初叶片。
The leaf of the embryo of a seed-bearing plant; after germination it becomes the first leaves of the seedling.
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