die·back
noun/ˈdaɪbæk/
/ˈdaɪbæk/
[uncountable]- a condition in which a tree starts to die from its leaves or roots backwards, as a result of disease or pollution
枯死：由于疾病或污染，树木开始从其叶子或根部倒退的状况 - The leaves of this tree show signs of ash dieback.
这棵树的叶子有白蜡枯死的迹象。 - Dieback is killing trees in many areas of Auckland.
奥克兰许多地区的树木枯萎病正在造成树木死亡。
- The leaves of this tree show signs of ash dieback.