There was a smell of burning in the air.

空气中有一股烧东西的焦煳味。

《牛津词典》

The smell of burning rubber filled the air.

空气中弥漫着橡胶燃烧的气味。

《牛津词典》

The smell of burning rubber is not pleasant.

橡胶燃烧的气味不好闻。

《新英汉大辞典》

Players reported a smell of burning in the cabin so the captain diverted to the nearest airport.

BBC: Stoke players in plane emergency

The next morning when we emerged from the shelter there was devastation all around and an acrid smell of burning buildings.

BBC: Beyond the Blitz: More of your Coventry Blitz memories

But the FF, inching through the stultifying heat for hour after hour, behaved impeccably: no glitches, no coughs, no smell of burning flesh emanating from the vents.

BBC: Cruising around northern Italy