“关税减让”一直是多边国际谈判的主要议题。关税减让谈判一般在产品主要供应者与主要进口者之间进行 ,其他国家也可参加。双边的减让谈判结果 ,其他成员按照“最惠国待遇”原则可不经谈判而适用关税减让原则 The “tariff concessions” have always been the main topic of multilateral international negotiations. Tariff reduction negotiations are generally conducted between major suppliers of products and major importers, and other countries may participate. According to the results of the bilateral concessional negotiations, other members may apply the tariff reduction principle without negotiation according to the principle of “most favored nation treatment”.