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1. The engine roared to life as the car sprang into motion.
汽车启动时发动机轰鸣着。
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2. The thunderous roar of the waterfall filled the valley with its power.
瀑布震耳欲聋的轰鸣声充满了山谷。
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3. The train whistled and the locomotive roared as it pulled into the station.
火车鸣笛,机车轰鸣着驶入车站。