The elastic layer 2, high rebound value, can protect athletes joints, reducing the risk of ligament injuries, can increase the athletes running speed, improve the sports level.

高回弹值的弹性层，既能保护运动员的关节，减少韧带受伤危险，更能提高运动员跑动速度，提高竞技水平。

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In Crete, Italy, and Greece, cyclopean work overcame material weaknesses by using enormous irregularly shaped stones without mortar, thereby reducing the number of joints.

在克里特岛、意大利、希腊，巨石作品使用无砂浆、不规则形状的巨大石头，克服了材质上的弱点，进而减少了接合处的数量。

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It will not come down until the two countries loosen their labour markets' famously stiff joints by cutting minimum wages, making hiring and firing easier, reducing payroll taxes and so on.

ECONOMIST: Jobs