名词
中文翻译：紫色顶部枯萎病
同义词：
['Purple Top Disease', 'Purple Top Wilt', 'Purple Top Blight']
例句：
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1.The purple top wilt has been a major threat to the apple crop in recent years.
近年来，紫色顶部枯萎病已成为苹果作物的主要威胁。
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2. The farmers are trying to find ways to control the purple top wilt.
农民们正在尝试找到控制紫色顶部枯萎病的方法。
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3. The disease has spread rapidly across the region, causing significant damage to the apple trees.
该疾病迅速蔓延至该地区，对苹果树造成了严重的损害。