经验丰富的山地自行车手在森林中骑行 Experienced mountain bikers riding through a forest

在一个阳光明媚的早晨，经验丰富的山地自行车手在森林中快速骑行，在茂密的树木之间跳跃。

Experienced mountain bikers riding through a forest, quickly, jumping, between abundant trees, on a sunny morning.