Dollar cost averaging(DCA) is an investment strategy where a person invests a set of amount of money over given time intervals. Investors choose this investment strategy when long term growth of an asset is foreseen, but a removal of short term volatility is desired.
过去几年定投比特币的收益，甚至可以跑赢标普指数。比特币现在十万一枚了，可以买吗？只要你相信它的价值并坚定长期持有，随时都可以买。
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