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1.The study of this material is crucial for understanding the origins of life on Earth.
研究这种材料对于理解地球上生命的起源至关重要。
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2.The government has been working to reduce the amount of gross-fission products in the environment.
政府一直在努力减少环境中的粗裂变产物数量。
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3. The accident resulted in a large amount of gross-fission products being released into the air.
事故导致大量粗裂变产物被释放到空气中。