He is all talk and no action.

他是个光说不练的人。

youdao

I hate all talk and no action.

我讨厌光有一大堆空话而无实际行动。

youdao

You're all talk and no action.

你只会说不会做。

youdao

Democrats have assailed the administration for being all talk and no action on tax issues.

FORBES: Magazine Article

"Some politicians are all talk and no action, " the group said.

CENTERFORSECURITYPOLICY: Obama, cop-killers and the cops

Defense attorneys respond that their clients are all fiery talk and no action.

NPR: Trial Begins For Men Accused In Fort Dix 'Pizza Plot'