2) Please don’t use lumpy reference (such as: Papagiannakis, 2013; Di Blasio and Belgiorno et al., 2017; Zheng and Wang et al.,2019; Chen and Zhu et al., 2020; Song and Feng et al., 2020; Song and Wang, 2020;You and Liu et al., 2020). Each reference needs to be properly addressed. Please revise your paper accordingly since same issue occurs on several spots in the paper,
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