名词
中文翻译：Unknown
同义词：
['observer', 'spectator']
例句：
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1. He was a good observer of the game's dynamics.
他是一个很好的观察者，能够理解比赛的动态。
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2. The spectators cheered and applauded as the athletes took to the field.
运动员们上场时，观众们欢呼鼓掌。
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3. She is an excellent observer of human behavior.
她对人类行为有很好的观察力。