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In a 3-year study of 200 people with joint problems published in the Lancet, glucosamine reduced joint pain and stiffness by up to 25 percent and helped prevent the progression of osteoarthritis in the knees.
Explanation: I think 恶化 is too strong here, usually 恶化 would be deteriorate. Here it doesn't have that meaning. So I chose 蔓延, becasue osteoarthritis would eventually spread all over the joints. 蔓延 might fits in your translation.
isahuang Local time: 16:52 Native speaker of: Chinese PRO pts in pair: 491
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