Translation of "spiral" - English-Mandarin Chinese dictionary

spiral

noun [ C ] uk us /ˈspaɪə.rəl/ US  /ˈspaɪr.əl/

a shape made up of curves, each one above or wider than the one before

螺旋形
A corkscrew is spiral-shaped. 瓶塞钻是螺旋形的。
downward spiral

when a price, etc. is becoming lower, or when a situation is getting worse and is difficult to control because one bad event causes another

(价格等的)不断下降;(局面的)迅速恶化;螺旋式恶性下滑
This year's downward spiral of house prices has depressed the market. 今年房价的持续下跌造成了市场的疲软。
We must avoid the downward spiral in which unemployment leads to homelessness and then to crime. 我们必须避免失业导致无家可归,进而导致犯罪的恶性循环。

(Translation of “spiral noun” from the Cambridge English-Chinese (Simplified) Dictionary © Cambridge University Press)