Bleach and chemical agents used in cleaning products may leave your home looking clean but they really make a mess of the water supply when they find their way into rivers.

清洁用品中的漂白剂和化学药品也许能使你家里看起来很干净，但当它们排入河流后会污染水源，给供水造成困难。

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They were looking for things. But they don't want that message seen, because they were trying to clean up the area to leave no evidence behind of the presence of weapons of mass destruction.

他们在寻找某些东西，但他们不希望那条信息被别人看见，因为他们试图将有关地方清理干净，不留下任何大规模杀伤性武器存在的证据。

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Upper edge of main case are wrapped by stainless steel, not only make the product good looking and better anti-corrosion, but also protect the surface out of scratch. Meanwhile, it is easier to clean.

不锈钢包边，不仅提高了箱体美观度和关键部位的防腐性而且在使用过程中不易出现表面刮痕，同时也更加便于清理；

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The authority said clean up work had begun but it was looking at a permanent solution to stop it blocking again.

BBC: Divers used to investigate flood-hit A34 in Stone

There was little between the two sides, but West Ham were made to pay for some poor finishing and are left still looking for a first clean sheet in the league since February.

BBC: Hull 1-0 West Ham

That amplifier puts out some very clean sound when paired with non-powered speakers, but this is the kind of setup intended for audiophiles looking for a simple secondary system -- exactly the kind of listener who cringes at the thought of lossy, compressed streaming audio.

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