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单词 spiral
释义

spiral

noun
/ˈspaɪrəl/
/ˈspaɪrəl/
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  1. enlarge image
    a shape or design, consisting of a continuous curved line that winds around a central point, with each curve further away from the centre
    • The birds circled in a slow spiral above the house.
    • A spiral of smoke rose from the chimney.
    Topics Colours and Shapesc1
  2. a continuous harmful increase or decrease in something, that gradually gets faster and faster
    • How can we halt the destructive spiral of violence in the inner cities?
    • measures to control the inflationary spiral
    • the upward/downward spiral of sales
    • the vicious spiral of rising wages and prices
    see also death spiral
    Extra Examples
    • The economy continued its downward spiral.
    • There is a risk that the policy may trigger an inflationary spiral.
    • to halt the vicious downward spiral of drug abuse
    • The book gives a harrowing account of a downward spiral of drink, drugs and despair.
    • The country is caught in a vicious spiral of rising wages and prices.
    Topics Change, cause and effectc1
    Oxford Collocations Dictionaryadjective
    • vicious
    • downward
    • upward
    verb + spiral
    • create
    • trigger
    • continue
    preposition
    • spiral of
    See full entry
  3. Word Originmid 16th cent. (as an adjective): from medieval Latin spiralis, from Latin spira ‘coil’, from Greek speira ‘a coil’.

spiral

adjective
/ˈspaɪrəl/
/ˈspaɪrəl/
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  1. moving in a continuous curve that winds around a central point
    • A snail's shell is spiral in form.
    Topics Colours and Shapesc1
    Word Originmid 16th cent. (as an adjective): from medieval Latin spiralis, from Latin spira ‘coil’, from Greek speira ‘a coil’.

spiral

verb
/ˈspaɪrəl/
/ˈspaɪrəl/
Verb Forms
present simple I / you / we / they spiral
/ˈspaɪrəl/
/ˈspaɪrəl/
he / she / it spirals
/ˈspaɪrəlz/
/ˈspaɪrəlz/
past simple spiralled
/ˈspaɪrəld/
/ˈspaɪrəld/
past participle spiralled
/ˈspaɪrəld/
/ˈspaɪrəld/
(North American English usually) past simple spiraled
/ˈspaɪrəld/
/ˈspaɪrəld/
(North American English usually) past participle spiraled
/ˈspaɪrəld/
/ˈspaɪrəld/
-ing form spiralling
/ˈspaɪrəlɪŋ/
/ˈspaɪrəlɪŋ/
(North American English usually) -ing form spiraling
/ˈspaɪrəlɪŋ/
/ˈspaɪrəlɪŋ/
Phrasal Verbs
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  1. [intransitive] (+ adv./prep.) to move in continuous circles, going upwards or downwards
    • Smoke spiralled into the sky.
    • The plane spiralled down to the ground.
  2. [intransitive] to increase rapidly
    • the spiralling cost of healthcare
    • + adv./prep. Prices are spiralling out of control.
    Topics Change, cause and effectc1, Moneyc1
  3. Word Originmid 16th cent. (as an adjective): from medieval Latin spiralis, from Latin spira ‘coil’, from Greek speira ‘a coil’.
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更新时间:2024/12/22 19:36:51