고지서를 받으�?송달지(실거주지)�?변경하실려�?서비스를 신청하여 주시�?바랍니다. If a grammatical basic principle which is additional to 서툴�?is a vowel �?and there's no other possibility other than a vowel �?then that grammatical principle can not be added to 서툴�? 고대로부�?수�