He was chipping away at the stone.

他不停地凿那块石头。

《牛津词典》

Kropelin is not the only scientist chipping away at these scenarios.

克勒珀林不是唯一一个对此不以为然的科学家。

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While the upgrade story is still poor, Microsoft has been slowly chipping away at the problem.

尽管进行升级仍然显得捉襟见肘，微软一直在不断铲除这个问题。

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While chipping away at the deficit is important, the drop is a mere 6%.

FORBES: CBO Claims Health Care Act Now Saves Taxpayers $84 Billion

Meanwhile, science keeps chipping away at the wall that separates us from the other animals.

WSJ: The Brains of the Animal Kingdom

On sentencing, Recorder Stephen Lowne said "it was important society keeps chipping away at this evil".

BBC: Steven Cleaver made indecent child images