noun🔗Share木质部, 输送管。 A vascular tissue in land plants primarily responsible for the distribution of water and minerals taken up by the roots; also the primary component of wood."The sturdy oak tree's xylem transports water from its roots up to its leaves. "这棵健壮的橡树的木质部负责将水分从根部输送到树叶。plantbiologyanatomystructureChat with AIVocabulary GamePractice Reading