特命大使

例句：

1. 1. The ambassador was invited to the meeting by his government.
   该大使被其政府邀请参加会议。
2. 2. He is an ambassador for the United States in China.
   他是中国美国大使馆的一名外交官。
3. 3. The ambassador has been criticized for his handling of the crisis.
   这位大使因其处理危机的方式受到批评。