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1. The study found that the prebiotic stage is crucial for the growth of certain bacteria.
研究发现，前生代谢阶段对于某些细菌的生长至关重要。
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2. During the prebiotic stage, the body begins to produce enzymes that are essential for digestion.
在前生代谢阶段，身体开始产生消化所必需的酶。
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3. Researchers have identified a prebiotic substance that can help prevent heart disease and diabetes.
研究人员已经发现了一种前生代谢物质，可以帮助预防心脏病和糖尿病。