| 释义 | 
		Definition of true leaf in English: true leafnoun Botany A foliage leaf of a plant, as opposed to a seed leaf or cotyledon.  Example sentencesExamples -  Sectoring events were observed in roots, cotyledons and the first true leaves, but no systematic description of sector frequency, sector size or any other parameter was undertaken.
 -  Arabidopsis seedlings grown on media containing 300 mM glucose or sucrose fail to become green or to develop expanded cotyledons or true leaves.
 -  The embryo is comprised of the embryonic axis (incorporating the embryonic root and the hypocotyl), a single cotyledon, containing the first true leaves, and the scutellum.
 -  Plants overexpressing both R and GL1 produce many trichomes on cotyledon and hypocotyl surfaces and more trichomes on true leaves than plants overexpressing R alone.
 -  In the study of leaf growth and flowering time, pre-cultivation ended after 14 d when the plants had two true leaves with petioles.
 
    Definition of true leaf in US English: true leafnoun Botany A foliage leaf of a plant, as opposed to a seed leaf or cotyledon.  Example sentencesExamples -  Sectoring events were observed in roots, cotyledons and the first true leaves, but no systematic description of sector frequency, sector size or any other parameter was undertaken.
 -  Arabidopsis seedlings grown on media containing 300 mM glucose or sucrose fail to become green or to develop expanded cotyledons or true leaves.
 -  The embryo is comprised of the embryonic axis (incorporating the embryonic root and the hypocotyl), a single cotyledon, containing the first true leaves, and the scutellum.
 -  In the study of leaf growth and flowering time, pre-cultivation ended after 14 d when the plants had two true leaves with petioles.
 -  Plants overexpressing both R and GL1 produce many trichomes on cotyledon and hypocotyl surfaces and more trichomes on true leaves than plants overexpressing R alone.
 
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