downward spiral

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UK

C1 高級
n.名詞每況愈下
The company entered a downward spiral after the scandal.
n.名詞江河日下
After losing his job, he went into a downward spiral of depression and debt.

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日本鐵路獲勝的原因 (Why Japanese Railways Win)

20:51日本鐵路獲勝的原因 (Why Japanese Railways Win)