词语

空口无凭只凭嘴说却拿不出真凭实据。例空口无凭立字为证。英verbal statement cannot be depended;

空口不吃饭也不喝酒而光吃菜肴。英eat dishes without rice or wine;不吃菜而单吃饭或喝酒。英eat rice or drink wine with nothing to go with it;