单词	spiral
释义	noun | verb spiralspiral1 /ˈspaɪrəl/ ●○○ noun [countable] Etymology ETYMOLOGYspiral1 Origin: 1500-1600 Medieval Latin spiralis (adjective), from Latin spira coil Collocations COLLOCATIONS► a downward spiral  The news sent stocks into a downward spiral. ► an inflationary spiral (=a continuing rise in wages and prices because an increase in one causes an increase in the other) 1 a line in the form of a curve that winds around a central point, moving farther away from the center all the time2a process, usually a harmful one, in which something gradually but continuously rises, falls, gets worse, etc.: spiral of a spiral of violence The news sent stocks into a downward spiral.an inflationary spiral (=a continuing rise in wages and prices because an increase in one causes an increase in the other) [Origin: 1500–1600 Medieval Latin spiralis (adjective), from Latin spira coil]—spiral adjective noun | verb spiralspiral2 verb (spiraled also spiralled, spiraling also spiralling) [intransitive] Verb Table VERB TABLE spiral Simple Form Present I, you, we, they spiral he, she, it spirals Past I, you, he, she, it, we, they spiraled Present perfect I, you, we, they have spiraled he, she, it has spiraled Past perfect I, you, he, she, it, we, they had spiraled Future I, you, he, she, it, we, they will spiral Future perfect I, you, he, she, it, we, they will have spiraled Continuous Form Present I am spiraling he, she, it is spiraling you, we, they are spiraling Past I, he, she, it was spiraling you, we, they were spiraling Present perfect I, you, we, they have been spiraling he, she, it has been spiraling Past perfect I, you, he, she, it, we, they had been spiraling Future I, you, he, she, it, we, they will be spiraling Future perfect I, you, he, she, it, we, they will have been spiraling Collocations COLLOCATIONS► spiraled out of control  The controversy has spiraled out of control. 1[always + adv./prep.] to move in the shape of a spiral: spiral to/around/up/down etc. Yellow smoke spiraled upward.2if a situation spirals, it gets worse, more violent, etc. in a way that cannot be controlled:  The controversy has spiraled out of control.3if debt or the cost of something spirals, it increases quickly in a way that cannot be controlled—spiraling adjective:  the spiraling cost of health care
随便看	companionable companionably companionship company company car company town company union comparability comparable comparably comparative comparative advantage comparative literature comparatively compare comparison comparison and contrast comparison-shop comparison shopping compartment compartmentalization compartmentalize compartmentalized compass compassion

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