It is obviously difficult for the current rules of origin,as employed by trade statistics,to accurately reflect the main changes in world economic development; these rules could even result in a distorted picture of trade balance situation.

• 按现行原产地统计进出口贸易的办法，显然难以准确反映世界经济发展变化的大势，甚至会扭曲国与国之间的贸易平衡状况。