空口 kōngkǒu empty words Origin Definitions Defs Strokes Stroke Words Sentences Sents 空口无凭 kōngkǒuwúpíng unsubstantiated mere verbal statement cannot be taken as proof空口说白话 kōngkǒushuōbáihuà empty promises to make empty promises空口白话 kōngkǒubáihuà empty promises