一不做,二不休

yī bù zuò , èr bù xiū

lit. either don't do it, or don't rest (idiom)

fig. if you do it at all, you may as well go the whole hog; in for a penny, in for a pound

one

no; not so

zuò

to make; to produce

,

èr

two

no; not so

xiū

to rest