动词短语
中文翻译：精通
同义词：
['excel at', 'be proficient in', 'have expertise in']
例句：
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1. She is an expert in the field of computer programming.
她在这个领域是计算机编程的专家。
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2. He has been practicing his guitar for years and is now quite proficient.
他多年来一直在练习吉他，现在相当熟练了。
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3. The software developer has been working on this project for several months and is now proficient in its implementation.
这位软件开发者已经在这个项目中工作了几个月，并且对它的实现非常熟练。