不敢高攀

lit. not dare to pull oneself up high (humble term) / I cannot presume on your attention

no; not so / (bound form) not; un-

to dare / daring / (polite) may I venture

surname Gao

high / tall / above average / loud / your (honorific)

social climbing / to claim connections with people in higher social class

to climb (by pulling oneself up) / to implicate / to claim connections of higher status