影片名稱：How Bitcoin Works in 5 Minutes
影片來源：http://bit.ly/2tCgL8R
◆ 大意：比特幣的技術內容，簡短五分鐘解釋了
1. 比特幣如何去中心化
2. 如何加密
3. 帳本和挖礦如何運作
◆ centralized (adj.) 集中的
Centralized database storage improves data preservation.
◆ ledger (N.) 總賬，分類賬
In summary, employees who maintain the accounts receivable subsidiary ledger should not have access to cash receipts.
◆ anonymity (N.) 匿名
The police have reassured witnesses that they will be guaranteed anonymity.
◆ cryptographic (adj.) 加密的
Cryptographic algorithms are a series of processes used to encipher and decode messages.
◆ tally (V.) 符合，吻合
The numbers on your spreadsheet don’t tally with ours.
◆ property (N.) 特質
He is studying the medicinal properties of wild plants.
