Well, keeping clean is a good way to lessen the smell.

当然，保持清洁干净是一个好方法。

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Keeping clean is FBI-speak for making sure an agent has not been tailed.

“弄干净”是联邦调查局的术语，意思是确保探员未被盯梢。

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She became neurotic about keeping the house clean.

她对保持房子清洁有点神经质。

《牛津词典》

The Brazilian shot-stopper has become a cult hero at Ashton Gate, keeping 15 clean sheets so far this season.

BBC: Basso is City player of the year

The benefits of non-stick gum are obvious for government authorities, which spend a lot of time and money keeping streets clean.

FORBES: Magazine Article

But Smith believes Rangers have given themselves a huge opportunity to win the semi-final tie by keeping a clean sheet on home soil.

BBC: Smith confident of Gers progress