总之，繁荣与萧条周期现象，在某种程度上与现代世界有关。

In short, the boom - bust -cycle phenomenon is somehow linked to the modern world.

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汛是指江河等水域的季节性或周期性的涨水现象。

Flood period is seasonal or periodic flood rise phenomenon of rivers.

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汛是指江河等水域的季节性或周期性的涨水现象。

Flood period is seasonal or periodic flood rise phenomenon of rivers.

youdao