spiralling
['spaɪərəlɪŋ]
n.
螺型位移，螺旋运动;
v.
盘旋上升（或下降）( spiral的现在分词 );
（物价等）不断急剧地上升（或下降）;
例句:
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That shadow falling, like a leaf spiralling down.
来自New Quarterly (Canada)
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The divorce rate is spiralling upwards.
离婚率正急遽上升。
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Prices are still spiralling.
物价仍在急剧上涨.
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Prices are still spiralling up.
物价仍在盘旋上涨.
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It appears to be spiralling out of control.
来自BBC
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Dinner was denied him by the spiralling unity of the flock.
来自THETIMES