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They advance by covering their own tracks.

他们总是自己找辙前进。

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Behind the wall, Michael pulls the toilet back into position, covering their tracks.

Michael进到墙后，将马桶拉回原位，掩盖他们的踪迹。

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Before Mr Ecclestone, they cared little for the detailed work of tying up commercial agreements with each of the race tracks covering trackside advertising, gate money, hospitality, television rights and so on.

ECONOMIST: Mr Formula One

The army, which stands behind Mr Abhisit, has a long history of covering its tracks.

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Artful burglars in Saudi Arabia have adopted an effective method of covering their tracks when raiding expatriate flats.

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