ADJ If you are proficient in something, you can do it well. 精通的
A great number of Egyptians are proficient in foreign languages.
大量埃及人精通外语。
She's proficient in several languages.
她精通好几种语言。
A great number of Egyptians are proficient in foreign languages.
大量埃及人精通外语。
She was very proficient in music.
她非常精通音乐。
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