1. She became a professional mezzo-soprano.她成为一名专业的女中音歌手。《柯林斯英汉双解大词典》2. She became a professional mezzo - soprano.她成了一名专业的女中音歌手。youdao3. She became a professional mezzo - soprano.她成了一名专业的女中音歌手。youdao