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1. He was diagnosed with gastric acid reflux, which caused him to suffer from heartburn and indigestion.
他被诊断出患有胃食管反流病，这导致他遭受胸痛和消化不良的困扰。
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2. The doctor prescribed a medication to help reduce the amount of gastric acid in his stomach.
医生开了一种药物来帮助减少他胃中的酸度。
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3. Gastric acid is essential for digestion, but too much can cause damage to the esophagus.
胃液对于消化至关重要，但过量可能导致食道受损。