Paper polishing is generally a step chosen by researchers from non-English speaking countries before submitting papers to international journals (usually journals included in SCI). The purpose of polishing the paper is to avoid academic ambiguity and save the time for reviewers to review the paper.
In order to help the original author express the original intention of the article and reflect the fluency of the article, the paper has been polished by English mother tongue. Paper polishing means that researchers from non-English-speaking countries are usually pointed out by magazine editors because their language writing level can't meet the requirements of some English journals.
Faced with this problem, in order to make the article published smoothly and avoid academic ambiguity, we should choose the steps before submitting to international journals.