名词
中文翻译：Unknown
同义词：
['cotyledonous', 'cotyledon']
例句：
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1.Cotyledons are the first two leaves of a plant embryo.
胚根是植物胚胎的第一和第二片叶子。
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2. The cotyledons are responsible for absorbing water and nutrients from the soil.
胚根负责从土壤中吸收水分和养分。
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3.In some plants, the cotyledons can grow into leaves later in development.
在某些植物中，胚根可以在发育后期长成叶子。