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dustdQstn [U]dry dirt in the form of powder that covers surfaces inside a building, or dry very small pieces of earth, sand or other substances尘土;灰尘The furniture was covered in dust and cobwebs.家具上布满了灰尘和蜘蛛网。A cloud of dust rose in the air as the car roared past.汽车呼啸而过的时候，在空中扬起了一阵尘土。Many miners have suffered from the effects of coal dust in their lungs.许多矿工由于肺部吸入了煤灰而患病。For several days we drove across an arid wasteland of dust and stones.好几天我们都驶过满是尘土与石头的干旱荒地。(fig. literary) Every promise they have made has turned to dust (= has become worthless).他们所作的每一个承诺都成了泡影。If you allow the dust to settle or let the dust settle or wait until the dust has settled, you wait for a situation to become calm before doing anything.等待风波过后We thought we'd let the dust settle before discussing the other matter with them.我们想在风波过后再与他们谈另外的事。A dust jacket on a book is a removable paper cover for it, usually with the book's title and the name of the writer printed on it.（书的）护封皮(infml) A dust-up is a physical fight or noisy argument.争吵;打斗
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