RT: Blockchain has become a versatile tool for many uses beyond cryptocurrency, such as banking, finance, and supply chain. But many blockchains are not scalable and have a poor carbon footprint.
RT：区块链已成为加密货币以外的多用途工具，如银行、金融和供应链。但许多区块链无法扩展，碳足迹也很低。
RT: Blockchain has become a versatile tool for many uses beyond cryptocurrency, such as banking, finance, and supply chain. But many blockchains are not scalable and have a poor carbon footprint.
RT：区块链已成为加密货币以外的多用途工具，如银行、金融和供应链。但许多区块链无法扩展，碳足迹也很低。