比特币 Bitcoin
Bitcoin is a digital currency created in 2009 on the premise of creating a new currency that was free from financial institutions.
比特币诞生于2009年，其产生的前提是创造一种能够不受金融机构约束的新货币。
After the rapid rises and drops of bitcoin in price, many countries have warned their citizens against trading in bitcoin.
比特币的价格大起大落，因此许多国家警告其国民，不要用比特币进行交易。
