ambassador plenipotentiary

例句：

1. 1. Theambassador was invited to the meeting by thepresident of the country.
   该大使被该国总统邀请参加会议。
2. 2. The ambassador's visitis expected to strengthen diplomatic relations between thetwo countries.
   预计大使的访问将加强两国之间的外交关系。
3. 3. The ambassador has beentasked with negotiating atrade agreement between the two nations.
   该大使被指派负责在两国之间谈判一项贸易协议。