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What is bitcoin? 比特币是什么？ Bitcoin is a kind of digital currency. 比特币是一种数字货币。 You can buy it with dollars or euros, just like you can trade any other currency. 你可以像兑换其他货币一样，用美元、欧元购买比特币。 You store it in an online “wallet.” And with that wallet, you can spend bitcoin online and in the physical world for goods and services. 存入网上“钱包”，然后可以通过这个“钱包”用比特币在网上或现实世界购买物品或服务。 | 
