spiral /ˈspaɪərəl/ CET6 TEM4 ( spiralling, spiralled, spirals )

• 1. 

  N-COUNT A spiral is a shape which winds around and around, with each curve above or outside the previous one. 螺旋形

  例：

  The maze is actually two interlocking spirals.

  这个迷宫实际上是两个连锁的螺旋体。

• 2. 

  ADJ Spiral is also an adjective. 螺旋形的 [ADJ n]

  例：

  ...a spiral staircase.

  …一段旋梯。

• 3. 

  V-T/V-I If something spirals or is spiralled somewhere, it grows or moves in a spiral curve. 使…螺旋式生长或移动; 螺旋式生长或移动

  例：

  Vines spiralled upward toward the roof.

  藤蔓螺旋式向上朝屋顶生长。

  例：

  The aircraft began spiralling out of control.

  那架飞机开始做螺旋式飞行，失去了控制。

• 4. 

  N-COUNT Spiral is also a noun. 螺旋式运动

  例：

  Larks were rising in spirals from the ridge.

  云雀在从山脊上盘旋飞升。

• 5. 

  V-I If an amount or level spirals, it rises quickly and at an increasing rate. 加速上升

  例：

  Production costs began to spiral.

  生产成本开始加速上涨。

  例：

  ...spiralling health care costs.

  …加速上涨的各种保健费用。

• 6. 

  N-SING Spiral is also a noun. 加速上升

  例：

  ...an inflationary spiral.

  …一次通胀性的激增。

• 7. 

  V-I If an amount or level spirals downward, it falls quickly and at an increasing rate. 加速下降

  例：

  House prices will continue to spiral downwards.

  房价将继续加速下跌。

• 8. 

  N-SING Spiral is also a noun. 加速下降

  例：

  ...a spiral of debt.

  …债务的加剧减少。