Prices are spiralling out of control.

物价飞涨，失去控制。

《牛津词典》

The aircraft began spiralling out of control.

那架飞机开始做螺旋式飞行，失去了控制。

《柯林斯英汉双解大词典》

Delinquencies are spiralling.

拖欠行为正螺旋上升。

youdao

Observers say that Kenyans can expect tax and interest-rate rises, spiralling unemployment and deepening poverty.

BBC: Trouble ahead for Kenya's economy

But most merger waves begin in this sensible way before spiralling out of control.

ECONOMIST: Mergers and acquisitions

The decision came amid fears the costs of fitting necessary equipment were spiralling out of control.

BBC: Joint strike fighter decision was flawed, MPs say