chún​chǐ​xiāng​yī

closely related

Senses

唇齿相依/ 唇齒相依 chún​chǐ​xiāng​yī variants: 脣齒相依 closely related

literally "as close as lips and teeth"; used to describe two parties that are closely related and mutually dependent for their survival

References

synonym 巢毁卵破/巢毀卵破 唇齿相依/唇齒相依