The phrase "to review the manuscript" means to read and evaluate a written document, offering feedback, suggestions, and assessments to improve its quality before it is published or submitted for further consideration. Full definition
Instead, these examples show the importance of hiring a professional editor to review your manuscript before you publish it. (liferichpublishing.com)
Further assessments of a manuscript's value occur after its delivery for publication when professional editors review the manuscript line by line and confirm the accuracy of the sources cited by the author. (slaw.ca)
All authors reviewed the manuscript critically for important intellectual content and gave final approval for it to be published. (bmjopen.bmj.com)