一点水一个泡

yī diǎn shuǐ yī gè pào

honest and trustworthy (idiom)

一

yī

one

点

diǎn

to touch briefly; to tap

水

shuǐ

water

一

yī

one

个

gè

variant of 個|个[ge4]

泡

pào

bubble; foam