He corrected errors in grammar and spelling when he edited the manuscript.

修订原稿时，他改正文法和拼写方面的错误。

youdao

The frequency of errors in grammar and punctuation has become a serious concern, the State Examination Commission said in a report after reviewing last year's exam performance by 15-year-olds.

爱尔兰国家考试委员会在针对去年15岁学生考试成绩的评论报告中称，语法和标点错误频频出现，已成为一个严重的问题。

youdao

The frequency of errors in grammar and punctuation has become a serious concern, the State Examination Commission said in a report after reviewing last year's exam performance by 15-year-old.

爱尔兰国家考试委员会在针对去年15岁学生考试成绩的评论报告中称，语法和标点错误频频出现，已成为一个严重的问题。

youdao