名词
中文翻译：年度作物同义词
同义词：
['perennial crop', 'annual yield']
例句：
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1. The farmer harvests his annual crop of wheat every spring.
这个农民每年春天收割他的小麦。
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2. The annual crop of wildflowers in the meadow is breathtaking.
草地上野生花卉的年度产量令人惊叹。
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3. The government has been promoting sustainable agriculture to increase the annual crop yield.
政府一直在推广可持续农业，以增加年度产量。