bubble train

基本解釋

Trains are hot and everybody (countries, states, cities and towns) wants serveral and soon a train building bubble arises and collapses and the train building business falls to less than half its its normal contribution to GDP.
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But longer term it's setting up a train wreck that could be even more destructive than the gaudy bursting of the high-tech bubble in 2000.
FORBES: Magazine Article