执政官

例句：

1. 1. The ambassador fromthe United States is here to discuss tradeissues with our government officials.
   美国大使来这里与我们的政府官员讨论贸易问题。
2. 2. Theambassador has been visiting various countries on adiplomatic mission.
   这位大使正在各个国家进行外交任务。
3. 3. The ambassador's speech waswell received by the audience.
   大使的演讲受到了听众的热烈欢迎。