고지서를 받으�?송달지(실거주지)�?변경하실려�?서비스를 신청하여 주시�?바랍니다. If a grammatical basic principle that is definitely additional to 서툴�?is really a vowel �?and there's no other choice in addition to a vowel �?then that grammatical principle cannot be additional to 서툴�? �