动词
中文翻译：Unknown
同义词：
['ambassador', 'envoy', 'emissary']
例句：
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1. He has been a diplomat for over twenty years.
他已经担任公使超过二十年了。
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2. The ambassador is expected to arrive in the capital tomorrow.
预计大使明天将抵达首都。
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3. She is an envoy of the United Nations.
她是联合国的特使。