单词 | xylem |
释义 | xylem/ˈzaɪləm ||; ˈzaɪlɛm/noun [u] (technical术语) the material in plants that carries water and food upwards from the root (植物从根部往上输送水分及营养的)木质部 ☞picture at flower 见flower插图 |
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