短语词组短语trade service protocol 贸易服务协议trade e protocol 贸易协定书International Trade Protocol 国际贸易议定书Trade Protocol of SADC 南部非洲共同体贸易协议IOTP Internet Open Trade Protocol 因特网开放式贸易协议The Amendment Protocol on Trade 贸易协定修订版 返回 trade protocol