Meaning of word 内三关
Writing Sheet
Word
Phonetic Notation ㄣㄟˋ ㄙㄢ ㄍㄨㄢ
word Meaning
明代以今河北境内沿内长城的居庸关﹑紫荆关﹑倒马关为"内三关"。
Meaning in Internet

内三关

  • 明代时以现今河北省境内沿内长城一路的居庸关、紫荆关、倒马关三关为“内三关”