- ??? ????(????? ??)???? ?? ????????? ?? ???? ??.???? ?~??- ?? ???? - ???? ???? - ?? - ?????- ???? - ???? - ?? ?????- ????If a grammatical theory which is added to ????is really a vowel ??and there is no other choice other than a vowel ??then that grammatical basic principle can not be added to ????                ????  ??