交易回合
指在同一市场上通过对两种
证券或合约一买一卖，或一卖一买的交易两相抵消。通常在计算手续费时会提及交易回合。
Round Turn
A transaction consisting of a purchase and a sale (or vice versa) of two securities or contracts in the same market, which offset each other. This is generally used when referring to commission charges.