名词
中文翻译：演讲者
同义词：
['speaker', 'lecturer', 'speaker of the day例句：1. The keynote speaker at the conference was a renowned expert in the field.（会议上的主旨演讲者是一位在该领域享有盛誉的专家。）']
例句：
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1. The keynote speaker at the conference was a renowned expert in the field.
会议上的主旨演讲者是一位在该领域享有盛誉的专家。
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2.She is a keynoter who has delivered inspiring speeches to audiences around the world.
她是一位在国际上发表鼓舞人心演讲的演讲者。
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3. The keynoter's presentation was highly engaging and informative.
演讲者的演示非常吸引人且信息丰富。