(idiom) you can't rely on a verbal agreement; just because sb says sth, doesn't mean it's true
trad. 口說無憑
Also written 口說無憑【kǒu shuō wú píng】
(idiom) you can't rely on a verbal agreement; just because sb says sth, doesn't mean it's true
trad. 口說無憑
Also written 口說無憑【kǒu shuō wú píng】