基本解释[经济学]区域贸易优惠英汉例句双语例句But regional trade preference is treated as a special exception to be applied in the WTO regime.世贸组织规则确立了区域贸易优惠的合法性，从而为区域贸易提供了前所未有的发展机遇。regional trade preference更多例句词组短语短语regional trade preference treatment 区域贸易优惠安排regional trade preference更多词组专业释义经济学区域贸易优惠