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phloem

noun
/ˈfləʊem/
/ˈfləʊem/
[uncountable] (biology生物)
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  1. the material in a plant containing very small tubes that carry sugars produced in the leaves around the plant韧皮部(由筛管等将叶制造的糖分输送到各部位的植物组织) compare xylem
    Word Originlate 19th cent.: from Greek phloos ‘bark’ + the passive suffix -ēma.

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