请你把中文翻译成为英文
这允许对等交易，并有四个独特的特点：(1)弹性，(2)安全性，(3)可追溯性和(4)不可逆性。
This allows peer-to-peer transactions, and has four unique characteristics: (1) resilience, (2) safety, (3) traceability and (4) irreversibility.