寒冷的天气也会很危险，人们在冰面上滑倒，汽车滑下坡，相互碰撞。
The cold weather can also be dangerous, people slip on the ice and cars slide down hills knocking into each other.
这辆车没有链子，也没有排档，因为它的刹车闸很小，所以骑着它爬山非常困难，而下坡又异常危险。
The bike has no chains or gears, making hills extremely difficult to climb and dangerous to descend due to its small brake.
他考虑到形势紧急，因此不管何种危险他必须现在就到塞纳河去，换句话说，要下坡。
He thought that the situation required haste, and that he must now gain the Seine at any risk. In other terms, he must descend.
他考虑到形势紧急，因此不管何种危险他必须现在就到塞纳河去，换句话说，要下坡。
He thought that the situation required haste, and that he must now gain the Seine at any risk. In other terms, he must descend.
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