China, unhappily, has its share of these dubious qualities as well as being inflicted by a huge speculative mania.

中国不幸地拥有上述可疑特征，并正在承受着巨大的投机热的困扰。

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Just consider the diverse economic backdrops that have caused its price to spike over the years: stagflation, financial panic, speculative mania and currency debasement.

只须想想多年来导致金价飙升的种种经济背景：滞涨、金融恐慌、疯狂投机，以及货币贬值。

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Call it a speculative mania if you must, but zero interest rates are forcing otherwise cautious cash savers the world over to seek out hard-asset protection for their wealth.

FORBES: Silver Soars As Speculators Dive Into The Devil's Metal

The Busang affair was not, first of all, a speculative frenzy such as the Dutch tulip mania of the 17th century or the South Sea Bubble of the 18th.

ECONOMIST: All that glisters . . .