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N-COUNT
螺旋(形)
A spiral is a shape which winds round and round, with each curve above or outside the previous one.
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V-ERG
(使)盤旋著生長(或移動)
If something spirals or is spiralled somewhere, it grows or moves in a spiral curve.
例句
Vines spiraled upward toward the roof...
藤蔓盤旋著朝屋頂方向生長。
...a bullet spiralling out of a gun barrel...
從槍管里飛旋而出的子彈
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VERB
(數量、水平)急遽增長
If an amount or level spirals, it rises quickly and at an increasing rate.
例句
Production costs began to spiral.
生產成本開始急遽上升。
...a spiralling trend of violence...
暴力急遽上升的態勢
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VERB
(數量、水平)急遽變化
If an amount or level spirals downwards, it falls quickly and at an increasing rate.
例句
House prices will continue to spiral downwards.
房價將繼續暴跌。