单词	coom
释义	coom 1 of 2 noun (1) variants or coomb ˈküm  plural -s 1 dialectal, British a : soot, smut b : coal dust or coal slack 2 : grease exuding from axle boxes or bearings coom 2 of 2 noun (2) variants or coomb "  plural -s Scottish : the wooden centering or frame on which a masonry arch is built Word History Etymology Noun (1) Middle English culme Noun (2) origin unknown
随便看	phugoid phugoid chart phugoid curve phugoid oscillation phugoid theory phulkari phulwa butter phulwara butter phut Phuteng phutengs phuts phy phyc- phyce Phyciodes phycitid Phycitidae phyco- phycobilins phycochrom Phycochromaceae phycochrome Phycochromophyceae phycocolloid

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