2/ Smart contracts are tamper-proof, blockchain-based programs that enable devs to build applications that are not controlled by a central administrator.
Learn more about smart contracts, including their history, how they work, & the problems they solve.
https://youtu.be/Un7-hW6GAec
2/智能合约是防篡改、基于区块链的程序，使开发者能够构建不受中央管理员控制的应用程序。
了解有关智能合同的更多信息，包括其历史、工作方式等；他们解决的问题。
https://youtu.be/Un7-hW6GAec