动词
中文翻译：专门从事
同义词：
['specialize', 'specialize in', 'specialize in...']
例句：
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1. She has been specialising in the field of medicine for over 20 years.
她已经在医学领域专研了20多年。
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2.The company specializes in manufacturing high-quality electronics.
该公司专门制造高质量的电子产品。
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3. He is a specialist in the field of renewable energy.
他是可再生能源领域的专家。