gāo bù chéng dī bù jiù
can't reach the high or accept the low (idiom); not good enough for a high post, but too proud to take a low one
高
gāo
high
不
bù
no; not so
成
chéng
short name for Chengdu 成都[Cheng2 du1]
低
dī
low
就
jiù
(after a suppositional clause) in that case; then