为保持对车辆的控制，驾驶人可选择和维持以低速档行车，并可轻踏煞车掣，调节速度。
To maintain control select and stay in a low gear and adjust speed with light pressure on the footbrake .
如果你的自行车的煞车不灵，你的马离弃你，和你的车坏了，怎么办？
What if your bike's breaks don't work, your horse abandons you, and your car breaks down?
如果你的自行车的煞车不灵，你的马离弃你，和你的车坏了，怎么办？
What if your bike's breaks don't work, your horse abandons you, and your car breaks down?
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