6/ Chainlink Data Feeds & Any API services offer developers a seamless way to deliver off-chain data and introduce more complexity to their smart contracts. https://chain.link/data-feeds
6/Chainlink数据源和；任何API服务都为开发者提供了一种无缝的方式来交付链外数据，并为他们的智能合约带来了更大的复杂性。https://chain.link/data-feeds