The trading pair #交易对 refers to the exchange relationship between coins, such as USDC/USDT which indicates purchasing USDC with USDT.

Common trading pairs include BTC/USDT, ETH/USDT, BNB/USDT, etc. These pairs usually have high liquidity, low slippage, and quick transactions, making them suitable for beginners.

There are also some smaller coin trading pairs like DOGE/USDT and PEPE/USDT, which, although volatile, come with high risks.

Additionally, there are stablecoin trading pairs such as USDC/USDT and FDUSD/USDT.

When choosing trading pairs, factors such as liquidity, trading volume, and platform support should be considered to ensure a good trading experience and safety.