Robert finds it hard to raise the dust because he is deeply in debt.

罗伯特因为债台高筑所以发现筹款很困难。

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Solving the problem of backmixing of falling dust is helpful to raise the dust collect efficiency of a deduster.

解决多管除尘器由于落尘返混现象，有助于提高除尘器的除尘效率。

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When he sees me sweeping the carpet, when he sees what a cloud of dust I raise, he begins to cluck like a pygmy.

每当他见我扫地毯，见到我扬起一大团灰尘，他就像一个小矮人一样咯咯叫开了。

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Campaigners walked from Mossley to the Plevin plant to raise awareness of the "long term effects on health" of dust.

BBC: Wood dust protesters march from Mossley to Plevin plant

They may raise their voices, not today, but when the dust settles.

BBC: Gaddafi killed: A new kind of US foreign policy success