He drove on, apparently unconcerned about the noise the engine was making.
他继续驾车前进，对发动机发出的噪声显然毫不在意。
《牛津词典》
2
I can't spare a week, so instead, I help him unload fish from the hold of the Lauren Dorothy, a friend's boat, while music blares over the noise of the engine.
The two choices of new engine could yield fuel savings of 15% (airlines consider anything above 2% to be meaningful), and will reduce carbon emissions and enginenoise.