all talk 光说不做,空谈
如果你要形容人经常光说不练,就可以用到all talk (and no action)这个短语.
all talk (and no action)解释如下
talking often about doing something, but never actually doing it.
光说不做,光说空话而不做,空谈,干打雷不下雨.
Eric won't do it. He's just all talk.
艾瑞克不会去做的,他总是光说不做.
The government has been cracking down on piracy for more than two months. It's no longer all talk but little action.
政府打击盗版的活动进行了两个多月,再也不是雷声大雨点小了.
Jimmy keeps saying he'll get a job soon, but he's all talk and no action.
吉米总说要找工作,但他总是光说不做.