英语词汇witches’ broom的起源、历史背景-英语词源词典

词汇	witches’ broom
词源	witches’ broom. An abnormal brushlike growth of weak, thin, closely clustered shoots or branches on a tree. They are caused by fungi or viruses.
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英语词源词典收录了13259条英语词源词条，基本涵盖了全部常用英语词汇的起源、历史，是研究英语词汇或通过词源学英语的必备工具。