So technically, if you ask what does the velocity stand for-- Let me draw a general situation.

从学术角度来说,如果你问速度表示什么,那让我来给你画一个常见的场景

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I think it's much severe than what you have experienced in the past year or two for the general economic situation.

甚至比过去两年的经济形势,还要严峻。

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