in AM, use 美国英语用 spiraling, spiraled
										- N-COUNT 螺旋(形)
 A spiral is a shape which winds round and round, with each curve above or outside the previous one.- Spiral is also an adjective.
 
- ...a spiral staircase.
 螺旋形楼梯
 
- 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.- 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
- A joss stick spiralled smoke.
 一柱线香青烟袅袅。
- Spiral is also a noun.
 
- Larks were rising in spirals from the ridge.
 云雀从山脊上盘旋着飞起。
 
- VERB (数量、水平)急遽增长
 If  an amount or level spirals, it rises quickly and at an increasing rate.- 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
- The divorce rate is spiralling upwards.
 离婚率正急遽上升。
- Spiral is also a noun.
 
- ...an inflationary spiral.
 急遽加快的通货膨胀
- ...a spiral of debt.
 债务激增
 
- VERB (数量、水平)急遽变化
 If an amount or level spirals downwards, it falls quickly and at an increasing rate.- House prices will continue to spiral downwards.
 房价将继续暴跌。