noun🔗Share下胚轴，胚轴。 In plants with seeds, that portion of the embryo or seedling between the root and cotyledons."The young bean plant's hypocotyl arched upwards, pulling the cotyledons out of the soil and into the sunlight. "这棵小豆苗的下胚轴向上弯曲拱起，将子叶拉出土壤，迎向阳光。plantbiologyseedpartstructurevegetablenaturescienceChat with AIVocabulary GamePractice Reading
