唇齿之邦[chún chǐ zhī bāng]
词典as states of lips and teeth：唇齿之邦。
词典唇齿之邦的近义词
词典states adjoining to each other：唇齿之邦。
词典states that are mutually dependent：唇齿之邦。
唇齿之邦[chún chǐ zhī bāng]
as states of lips and teeth; states adjoining to each other; states that are mutually dependent