大人国

例句：

1. 1. The ambassador was invited to deliver a speech at the conference.
   大使受邀在会议上发表演讲。
2. 2. He is an envoy of the United Nations.
   他是联合国的特使。
3. 3. The ambassador's wife received a warm welcome from the local people.
   大使夫人受到了当地人的热情欢迎。