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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)盘旋着生长(或移动)
If something spirals or is spiralled somewhere, it grows or moves in a spiral curve.
例句
Vines spiraled upward toward the roof...
藤蔓盘旋着朝屋顶方向生长。
...a bullet spiralling out of a gun barrel...
从枪管里飞旋而出的子弹
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VERB
(数量、水平)急遽增长
If an amount or level spirals, it rises quickly and at an increasing rate.
例句
Production costs began to spiral.
生产成本开始急遽上升。
...a spiralling trend of violence...
暴力急遽上升的态势
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VERB
(数量、水平)急遽变化
If an amount or level spirals downwards, it falls quickly and at an increasing rate.
例句
House prices will continue to spiral downwards.
房价将继续暴跌。