1. A flowering plant with two embryonic seed leaves or cotyledons that usually appear at germination. 
   双子叶植物具有两片胚籽的或通常在萌芽上有双子叶的花卉植物
2. A cytoplasmic pigment of green plants that absorbs light and regulates dormancy, seed germination, and flowering. 
   光敏色素绿色植物的一种胞质色素，它可吸收阳光和调整植物的休眠状态、种子发芽和开花
3. family of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination. 
   开花植物中种子有两个子叶（胚胎叶）显现在萌芽时期的一科。
4. genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination. 
   开花植物的一个属，种子具两片子叶（胚芽），萌芽时出现。
5. Of or relating to seed germination in which the cotyledons remain below the surface of the ground. 
   地下生的，地下产生子叶的种子萌芽的，或与之有关的，在这种萌芽里胚胎保留在地表面以下

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