自动降重只能是近义词替换。其他估计很死板吧。不过可以去试试。

人工降重的效果是语句通顺，不改变原文意思。还可以适当润色！论文修改尽量自己去修改，也可以找同学朋友修改，当然目前很多知网查重自助网站：PaperEasy、学术不端网、蚂蚁查重网等，也都可以知网查重和人工论文降重了。

效果还是不错的呢，公认最接近知网的查重系统，初稿可以使用

In English writing, it is not advisable to repeat the same wording over and over unless it is a specific terminology. Well, one has to repeat many words simply because those serve a functional role in constructing the sentences.

I think the point is not to give an impression that the author possesses very limited vocabulary. It is particularly true for adjectives, adverbs and rhetorical expressions. Employing different ways of saying the same thing is considered a necessary writing techniques for any writer. May be it is high time for you to develop your diction through this exercise.