At the bottom of the pyramid, many Latin American countries are seeing a boom in microcredit. The best example is Peru.

在金字塔的底部，许多拉丁美洲国家正在经历着小额信贷的繁荣，最好的例子是碧绿。

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No. 2: The US boom was top to bottom.

美国的房产泡沫是从顶层至底层的泡沫。

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The car boom is having an impact well beyond the carmakers' bottom-lines.

汽车热潮所造成的影响，远不止汽车制造商所获得的利润。

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This is genuine, bottom-up growth, not the boom-and-bust kind that used to characterise the West.

ECONOMIST: A new Republican heartland

Even so, overseeding practices in the Southwest have changed dramatically in the last five to seven years, as the golf industry's overbuilding boom went bust and put pressure on bottom lines.

WSJ: Why Brown Is the New Green | Golf Journal by John Paul Newport

There was just a bit of water on the bottom, and when he checked the rudder and sail and boom everything seemed to be in working order.

NEWYORKER: Max at Sea