名词
中文翻译：Unknown
同义词：
['early introduction', 'early strain', 'early selection']
例句：
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1. The earlyvariety of the plant has a unique flavor.
这种植物的早期品种有一种独特的味道。
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2.This early variety is resistant to pests and diseases.
这种早期品种对害虫和疾病具有抗性。
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3. The early variety of this crop has a higher yield than its later varieties.
这种作物的早期品种比其后期品种产量更高。