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ChangeNOW is a leading crypto exchange service that supports over 1200 coins and tokens across 100+ blockchains, allowing users to exchange instantly with no extra fees.

币安是全球领先的数字货币交易平台，提供比特币、以太坊、BNB以及USDT交易。

Ledger Nano S是一个安全的比特币硬件钱包。它通过USB来连接电脑并有一个内嵌的OLED显示屏来双重验证每一次交易。