名词
中文翻译：改良品种
同义词：
['improved strain', 'improved type', 'improved variety']
例句：
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1. The new varietyof apple has a sweeter taste than the old one.
这种新的苹果品种比旧的更甜。
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2. The breeders have developed a variety of plants that are resistant to pests.
育种者已经开发出一种对害虫具有抗性的植物品种。
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3.The improved variety of rice is more nutritious and easier to digest.
这种改良的水稻品种更加营养丰富，更容易消化。