名词
中文翻译：Unknown
同义词：
['promotion', 'endorsement']
例句：
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3. 例句：1. She is an advocate for environmental conservation.
她是一个环保的倡导者。
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2. The company's new product is a great promotion of its brand.
公司的新产品是其品牌的一次很好的推广。
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3. He was an advocate for the cause of civil rights.
他支持民权运动。