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1.The fertilizer experiment was a success, but the results were not as expected.
肥料实验成功了，但结果没有预期的那么好。
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2.The scientist conducted a fertilizer experiment to test the effectiveness of different types of fertilizers.
科学家进行了一个肥料实验，以测试不同类型肥料的效果。
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3.The fertilizer experiment showed that adding more nitrogen to the soil could increase crop yields.
肥料实验表明，向土壤中添加更多的氮可以增加作物产量。