n.螺旋；螺旋形之物；不断恶化、增加或减少
v.螺旋移动；盘旋上升；不断恶化、增加或减少
adj.螺旋形的；盘旋的
Society invariably moves forward in a spiral. 社会的运动总是采取螺旋形前进的。
This caused a downward spiral into depression. 这使经济下滑恶化为经济萧条。
用作动词 (v.)The smoke spiraled upwards. 那股烟袅袅上升。
Prices are still spiralling. 价格仍然在急剧上涨。
Their profits began to spiral down disastrously. 他们的利润开始螺旋形地急剧下降。
用作形容词 (adj.)A snails shell is spiral in form. 蜗牛的外壳形状是螺旋形的。
Her hair was styled into a cascade of spiral curls. 她的头发被做成了瀑布般的螺旋形鬈发。
The light house has spiral stairs leading to the top. 塔有个盘旋上升通向塔顶的梯子。
