One reviewer of my paper commented the following:
The authors should clearly state that the literature they have included in the introduction is indicative (both in the case of experimental measurements and molecular simulation of ILs) and redirect to some recent review articles.
I don't know what does he mean. I don't know If he expected that I add some introductory sentences before reviewing literature like (bold part):
Several experiments have recently been performed in order to understand the underlying dynamics of ILS, including XXX. ZZZ et al.  obtained the viscosities of the ILs XXX and YYY in a wide temperature range. Moreover, ZZZ and KKK  recently published atmospheric pressure self-diffusion coefficients of MMM tetrafluoroborates and NNN in the temperature range of 40-90 ℃.
However, in a previous paragraph I mentioned an introductory about ILs in General and not XXX in particular:
In the literature, experimental and theoretical methods have been employed to obtain the properties of ILs. Experimental analyses such as IR, H and F NMR spectra, polarizing optical microscopy, differential scanning calorimetry, and UV-vis spectra have been used to determine the properties of ILs [5-7].