．Sole. The sole should possess two

．Sole. The sole should possess two qualities. First, it must provide a shock absorptive function; second, it must be durable. Most shoes have three layers on the sole: a thick spongy layer, which absorbs the force of the foot strike under the heel; a midsole, which cushions the midfoot and toes; and a hard rubber layer, which comes in contact with the ground. The average runners feet strike the ground between 1, 500 and 1, 700 times per mile. Thus, it is essential that the force of the heel strike be absorbed by the spongy layer to prevent overuse injuries from occurring in the ankles and knees. “Heel wedges” are sometimes inserted on either the inside or out side surface of the sole underneath the heel counter to accommodate and correct for various structural deformities of the foot that may alter normal biomechanics of the running gait. A flared heel may be appropriate for running shoes but is not must provide good traction and must be made of a tough material that is resistant to wear. Most of the better-known brands of shoes have well designed, long-lasting soles.

結果 (繁體中文) 2:

.鞋底。鞋底應具備兩種品質。首先，它必須提供減震功能;第二，它必須是持久的。大多數鞋底有三層：厚厚的海綿層，吸收腳跟下的腳擊打力;中底，緩衝中腳和腳趾;和堅硬的橡膠層，與地面接觸。平均跑步者的腳每英里撞擊地面1，500到1，700次。因此，必須吸收海綿層吸收腳跟撞擊力，以防止腳踝和膝蓋發生過度使用損傷。腳跟楔塊有時入腳跟計數器下方的鞋底的內側或外側表面，以適應和糾正腳的各種結構畸形，這些變形可能會改變跑步步態的正常生物力學。喇叭鞋跟可能適合跑鞋，但不得提供良好的牽引力，必須由耐磨損的堅固材料製成。大多數知名品牌的鞋底設計完善，持久耐用。

結果 (繁體中文) 3:

.鞋底。鞋底應該具備兩種品質。首先，它必須提供减震功能；其次，它必須耐用。大多數鞋子的鞋底有三層：一層厚厚的海綿層，吸收脚跟下的足部衝擊力；一層中底，緩衝中足和脚趾；一層堅硬的橡膠層，與地面接觸。平均每英里跑步者的脚撞擊地面的次數在1500到1700次之間。囙此，足跟撞擊力必須被海綿層吸收，以防止脚踝和膝蓋發生過度使用傷害。“鞋跟楔子”有時插入鞋底內側或外側，位於鞋跟固定器下方，以適應和糾正可能改變跑步步態正常生物力學的各種足部結構變形。喇叭形鞋跟可能適合跑鞋，但不一定要提供良好的牽引力，而且必須由耐磨的堅硬資料製成。大多數知名品牌的鞋子都有設計精良、經久耐用的鞋底。