名词
中文翻译：年轮病
同义词：
['Annual ring disease', 'annual ring rot']
例句：
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1. The tree's annual canker is visible on the bark.
这棵树的年轮病在树皮上可见。
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2. The farmer has to treat the annual canker in the orchard.
农民必须治疗果园中的年轮病。
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3. The disease is caused by a fungus that attacks the annual canker of trees.
这种病是由一种攻击树木年轮病的真菌引起的。