名词
中文翻译：Unknown
同义词：
['preparation', 'anticipation', 'foreshadowing']
例句：
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1. The playgoers were given a preview of the upcoming production.
剧迷们提前观看即将上演的剧目。
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2. The scientists are conducting preliminary research to understand the phenomenon.
科学家们正在进行初步研究以了解这一现象。
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3. The new policy is a foreshadowing of what's to come.
新政策预示着未来的发展。