将后叉与齿盘盖整合作一体设计，不仅增加它美感也可以减少噪音。
It combines the back fork and the chain cover into one element. Flex not only reduces noise but also creates a new iconic look.
背景：关节镜下胫骨隧道拖入技术重建后叉韧带技术虽然复杂，但较经胫骨手术具有生物力学优势。
Background: Despite its technical complexity, arthroscopic tibial inlay reconstruction of the posterior cruciate ligament has biomechanical advantages over transtibial procedures.
当美洲猎豹消失后，它们对叉角羚进化的影响就停止了，对其他猎物的影响应该也停止了。
When the American cheetahs disappeared, their influence on the evolution of pronghorn and presumably on other prey animals stopped.
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