Is 'For W9's exemplary precision in telling us what vocabulary entries and dictionary entries are is offset by its vagueness about which type of entry its PR-wallahs have counted for their blurb.' a clear rebuttal of the premise 'W9 poorly explains vocabulary entries, but its PR blurbs are excellent.'
For W9's exemplary precision in telling us what vocabulary entries and dictionary entries are is offset by its vagueness about which type of entry its PR-wallahs have counted for their blurb.###W9 poorly explains vocabulary entries, but its PR blurbs are excellent.