为了防止贸易战的威胁，促进国际贸易的发展，世界主要贸易国纷纷派出代表参加旨在建立国际贸易组织的哈瓦那会议。
【正确答案】：To guard against the threat of trade wars,major trading nations sent their representatives to Havana in 1947 to create an International Trade Organization for the promotion of international trade.