See every Bitcoin transaction is recorded using a block chain.

每一笔比特币交易都是用区块链记录的。

And what binds the majority of all of them together is the block chain, this decentralized network of computers that verifies transactions.

把大多数加密货币关联在一起的是区块链，这种去中心化的电脑网络能用来验证交易。