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百度 文/桐城一派西甲第27轮，榜首第一的巴萨和第二的马竞展开了一场关键对决。

A visitor looks at a bicycle during the 31st China International Bicycle Fair in east China's Shanghai, May 5, 2023. The fair kicked off here on Friday, drawing more than 1,200 enterprises to participate. (Xinhua/Li He)

Polish traders look at a kids bike during the 31st China International Bicycle Fair in east China's Shanghai, May 5, 2023. The fair kicked off here on Friday, drawing more than 1,200 enterprises to participate. (Xinhua/Cai Yang)

People visit the 31st China International Bicycle Fair in east China's Shanghai, May 5, 2023. The fair kicked off here on Friday, drawing more than 1,200 enterprises to participate. (Xinhua/Cai Yang)

People visit the 31st China International Bicycle Fair in east China's Shanghai, May 5, 2023. The fair kicked off here on Friday, drawing more than 1,200 enterprises to participate. (Xinhua/Cai Yang)

A visitor looks at bicycles displayed during the 31st China International Bicycle Fair in east China's Shanghai, May 5, 2023. The fair kicked off here on Friday, drawing more than 1,200 enterprises to participate. (Xinhua/Cai Yang)

People visit the 31st China International Bicycle Fair in east China's Shanghai, May 5, 2023. The fair kicked off here on Friday, drawing more than 1,200 enterprises to participate. (Xinhua/Li He)

People visit the 31st China International Bicycle Fair in east China's Shanghai, May 5, 2023. The fair kicked off here on Friday, drawing more than 1,200 enterprises to participate. (Xinhua/Li He)

Visitors talk about a folding bike during the 31st China International Bicycle Fair in east China's Shanghai, May 5, 2023. The fair kicked off here on Friday, drawing more than 1,200 enterprises to participate. (Xinhua/Cai Yang)

Visitors look at a bicycle displayed during the 31st China International Bicycle Fair in east China's Shanghai, May 5, 2023. The fair kicked off here on Friday, drawing more than 1,200 enterprises to participate. (Xinhua/Fang Zhe)

People visit the 31st China International Bicycle Fair in east China's Shanghai, May 5, 2023. The fair kicked off here on Friday, drawing more than 1,200 enterprises to participate. (Xinhua/Cai Yang)

Visitors look at bike frames displayed during the 31st China International Bicycle Fair in east China's Shanghai, May 5, 2023. The fair kicked off here on Friday, drawing more than 1,200 enterprises to participate. (Xinhua/Cai Yang)

A young biker shows biking stunts during the 31st China International Bicycle Fair in east China's Shanghai, May 5, 2023. The fair kicked off here on Friday, drawing more than 1,200 enterprises to participate. (Xinhua/Fang Zhe)