It would more deeply tie the u. s.to asia and , with the inclusion of japan as a potential signee , become the most significant u. s.trade deal in many years .

协议将深化美国同亚洲地区的关系，而在将日本纳入潜在签署国范围的情况下，它还将成为美国多年来最重要的贸易协定。