In the overview section this point is alluded to by the sentence For example the aspiration distinction between b d g and p t k is similar to that of English but not to that of French I find this misleading as it suggests to me at least that aspiration is the difference between b d g and p t k in English as it is in Chinese However voicing is another and probably more important difference so I added in which the two sets are however also differentiated by voicing after English Let me know if you disagree with this modification