教授在发表前仔细校对了论文并做了一些修改。
The professor carefully ___emended the paper before submitting it for publication.
编辑花了很长时间来修正手稿中的错误。
The editor spent hours ___emending errors in the manuscript.
编辑花了数小时修改手稿中的错误。
The editor spent hours ___emending the errors in the manuscript.