不干不净，吃了没病

bù gān bù jìng , chī le méi bìng

a little dirt never killed anybody (proverb)

a couple of germs won't do you any harm

不

bù

no; not so

干

gān

(bound form) to have to do with; to concern oneself with

不

bù

no; not so

净

jìng

clean

，

,

吃

chī

variant of 吃[chi1]

了

le

(completed action marker)

没

méi

(negative prefix for verbs) have not; not

病

bìng

illness