"all talk" in Chinese (Simplified)
光说不做只会说
Definition
形容一个人只说不做，只会许诺但从不行动的人。
Usage Notes (Chinese (Simplified))
非正式，常带批评语气。多用于批评光说不练、只许诺不做事的人，如“他就是光说不做”。
Examples
He's all talk and never helps out.
他就是**光说不做**，从不帮忙。
She promised to clean, but it was all talk.
她答应打扫，但都是**只会说**。
Don't be all talk; do something!
别**光说不做**，做点事吧！
He always brags about exercising, but honestly, he's all talk.
他总是吹嘘自己锻炼，其实他就是**光说不做**。
You can tell who's serious and who's just all talk in this group.
在这个群体里，一眼就能看出谁是认真的，谁是**只会说**。
Don't listen to his promises—he's all talk and no action.
别听他的承诺——他都是**光说不做**。