Noises may develop in a worn engine.

磨损的引擎里可能会发出各种噪声。

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Big repair bills for a blown engine or worn-out transmission are often what finally kill an old car, says J.

WSJ: Old Cars: Breaking Up With a Broken-Down Car Is Hard��Eyes on the Road

The constant vibration and roaring of the engine had left me numb and had worn the paint off my helmet where it rested against the inside wall.

CNN: Digging in with the Marines