今天通过对这个项目的介绍，来总结回顾一下之前讲的公链。以及展望下未来区块链多链会是什么样子。

Today we will summarize and review the public chain mentioned earlier through the introduction of this project. And let’s think about together: what the future multi-chain will be like.

Terra 是一个公共区块链协议，部署了一套算法去中心化稳定币，支撑着一个繁荣的生态系统，将 DeFi 带给大众。

Terra is a public blockchain protocol that deploys a set of algorithmic decentralized stablecoins to support a thriving ecosystem bringing DeFi to the masses.

KDA：Kadena(KDA) 是分布式数字化记帐本的领导者，行业首创安全、可扩展的平台以及简单的智能合约语言，用区块链帮助各机构提高效率。Kadena 同时具备公链和联盟链两套解决方案，Kadena 的联盟链可以与公链网络集成，成为它的一部分，创造全新的市场用例。Kadena已获得来自SVAngel，CoinFund等机构的1500万美元融资。

KDA: Kadena (KDA) is a leading project in distributed digital ledger, the industry's first secure, scalable platform and simple smart contract language, using blockchain to help institutions improve efficiency. Kadena has both public chain and consortium chain solutions. Kadena's consorting chain can be integrated with the public chain and become a part of it, creating new market use cases. Kadena has received $15 million in financing from SVAngel, CoinFund, and others.

Layer 2 was created to solve the problems of L1 congestion and high gas fees. Now L2 networks with various technical architectures have emerged, but which application ecology is better? Which projects have a better user experience?

Layer2是为了解决L1网络的拥堵和gas费用过高的问题而产生的，现在各种技术架构的l2网络已经涌现出现，但是哪些应用生态更好？哪些项目的体验更好？

Layer2 is a holistic solution to improve the performance of Ethereum (layer1). As users increased, gas fee on Ethereum has become more expensive and the network become crowed.