Dutch elm disease
柯林斯词典
1. N a disease of elm trees caused by the fungus Ceratocystis ulmi and characterized by withering of the foliage and stems and eventual death of the parts of the tree above ground 荷兰榆树病
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1. N a disease of elm trees caused by the fungus Ceratocystis ulmi and characterized by withering of the foliage and stems and eventual death of the parts of the tree above ground 荷兰榆树病