Bitcoin, the digital currency that has attracted drug dealers and tax evaders, is on a roll again. But, after a price rise that echoes its first speculative bubble three years ago, the currency’s backers are warning that another sharp correction could follow.
比特币(Bitcoin)——吸引了毒贩和逃税者的数字货币——再次迎来好运。但是，在比特币价格飙升、仿佛三年前的第一轮投机泡沫重现之后，比特币支持者警告称，又一次大幅回调可能就要到来。
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