不蒸馒头争口气

bù zhēng mán tou zhēng kǒu qì

not to be crushed (idiom)

to be determined to have one's revenge

不

bù

no; not so

蒸

zhēng

to evaporate

馒

mán

used in 饅頭|馒头[man2 tou5]

头

tou

suffix for nouns

争

zhēng

to strive for

口

kǒu

mouth

气

qì

gas; air