kāi chéng bù gōng
variant of 開誠布公|开诚布公[kai1 cheng2 bu4 gong1]
lit. deal sincerely and fairly (idiom); frank and open-minded; plain speaking; Let's talk frankly and openly between ourselves.; to put one's cards on the table
开
kāi
to open (transitive or intransitive)
诚
chéng
(bound form) sincere; authentic
布
bù
cloth
公
gōng
public