My grades has improved 我的成绩终于得以提高
grades has improved
成绩有所提高
以上为机器翻译结果，长、整句建议使用 人工翻译 。
It's been less than a year since she started playing and already, they say, her speech has improved and she's more focused in school, which has led to better grades.
CNN: Watch out, bullies: She's got the band behind her
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