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1. The car was too heavy to move, so we had to use the ramp to get it across the river.
这辆车太重了，无法移动，所以我们不得不使用斜坡把它过河。
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2. The traffic police tried to stop the car in front of us, but it kept going.
交通警察试图在我们前面停下那辆车，但它继续前进。
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3. The firefighters had to block the door with their hoses to keep the flames fromspreading.
消防员不得不用水管堵住门，以防止火焰蔓延。