空口

kōng kǒu chī bái fàn

空口吃白饭

eat rice without dishes to go with

kōng kǒu yǐn jiǔ

空口饮酒

just drink wine

kōng kǒu chī cài

空口吃菜

eat dishes without staple food

kōng kǒu nuò yán

空口诺言

hollow promise

wǒ jué de guāng kōng kǒu shuō bù xíng děi zhēn zhuā shí gàn

我觉得光空口说不行，得真抓实干。

I think it's not good enough to talk empty talk and we have got to get down to work.

zhè shì zhǐ píng kōng kǒu shuō shì gǎo bù míng bai de

这事只凭空口说，是搞不明白的。

Merely talking without stating facts cannot make this matter clear.