| 单词 | spiral |
| 释义 | nounadjectiveverbspiralBrE /ˈspaɪrəl/ NAmE /ˈspaɪrəl/ noun a shape or design , consisting of a continuous curved line that winds around a central point , with each curve further away from the centre 螺旋形；螺旋式◆ The birds circled in a slow spiral above the house . 鸟儿在房子上空缓缓盘旋。a continuous harmful increase or decrease in sth , that gradually gets faster and faster 逐渐加速上升（或下降）◆ the destructive spiral of violence in the inner cities 内城区日益严重的暴力行为◆ measures to control the inflationary spiral 控制日益恶化的通货膨胀的措施◆ the upward /downward spiral of sales 日渐上升/下降的销售额spiralBrE /ˈspaɪrəl/ NAmE /ˈspaɪrəl/ adjective moving in a continuous curve that winds around a central point 螺旋形的；螺旋式的◆ A snail's shell is spiral in form . 蜗牛壳呈螺旋形。▸ spir·al·ly BrE /ˈspaɪrəli/ NAmE /ˈspaɪrəli/ adverb spiralBrE /ˈspaɪrəl/ NAmE /ˈspaɪrəl/ verb present simple - I / you / we / they spiral BrE /ˈspaɪrəl/ NAmE /ˈspaɪrəl/ present simple - he / she / it spirals BrE /ˈspaɪrəlz/ NAmE /ˈspaɪrəlz/ past simple spiralled BrE /ˈspaɪrəld/ NAmE /ˈspaɪrəld/ past participle spiralled BrE /ˈspaɪrəld/ NAmE /ˈspaɪrəld/ past simple (NAmE usually) spiraled BrE /ˈspaɪrəld/ NAmE /ˈspaɪrəld/ past participle (NAmE usually) spiraled BrE /ˈspaɪrəld/ NAmE /ˈspaɪrəld/ -ing form spiralling BrE /ˈspaɪrəlɪŋ/ NAmE /ˈspaɪrəlɪŋ/ -ing form (NAmE usually) spiraling BrE /ˈspaɪrəlɪŋ/ NAmE /ˈspaɪrəlɪŋ/ [I ](+ adv ./prep .)to move in continuous circles , going upwards or downwards 螺旋式上升（或下降）；盘旋上升（或下降）◆ The plane spiralled down to the ground . 飞机盘旋降落。[I ]to increase rapidly 急剧增长◆ the spiralling cost of health care 急剧上涨的医疗费用◆ + adv ./prep .Prices are spiralling out of control . 物价飞涨，失去控制。 ● ˌspiral ˈdown /ˈdownward to decrease rapidly 急剧减少 |
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