RT: Friendly reminder that Polkadot is a build-your-own-rollup protocol with shared security, automatic upgrades, and fast finality.
RT：友好地提醒您，Polkadot是一个构建您自己的汇总协议，具有共享安全性、自动升级和快速终结性。
RT: Friendly reminder that Polkadot is a build-your-own-rollup protocol with shared security, automatic upgrades, and fast finality.
RT：友好地提醒您，Polkadot是一个构建您自己的汇总协议，具有共享安全性、自动升级和快速终结性。