单词	ductwork
释义	duct·work (dŭktwûrk′) n. A group or system of ducts: installed new ductwork in the building.
随便看	AFL aflame aflatoxicosis aflatoxin AFL-CIO a flea in ear a flea in (one's) ear a flea in one's ear afloat aflutter Afonso Henriques Afonso I afoot afore aforementioned aforesaid aforethought aforetime a fortiori afoul of AFP Afr. afraid A-frame afreet

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