名词
中文翻译：推进者
同义词：
['promoter', 'propellor']
例句：
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1. The scientist is a promoter of new technologies.
这位科学家是新技术的推广者。
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2. The ship's engine is a propellor that powers the ship forward.
船的引擎是一个推进器，为船只提供动力向前行驶。
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3. The team needs a promoter to help them reach their goals.
团队需要一位推广者来帮助他们实现目标。