吃水不忘掘井人

chī shuǐ bù wàng jué jǐng rén

Drinking the water of a well, one should never forget who dug it. (idiom)

吃

chī

variant of 吃[chi1]

水

shuǐ

water

不

bù

no; not so

忘

wàng

to forget

掘

jué

to dig

井

jǐng

a well

人

rén

person; people