all talk 光說不做,空談
如果你要形容人經常光說不練,就可以用到all talk (and no action)這個短語.
all talk (and no action)解釋如下
talking often about doing something, but never actually doing it.
光說不做,光說空話而不做,空談,干打雷不下雨.
Eric won't do it. He's just all talk.
艾瑞克不會去做的,他總是光說不做.
The government has been cracking down on piracy for more than two months. It's no longer all talk but little action.
政府打擊盜版的活動進行了兩個多月,再也不是雷聲大雨點小了.
Jimmy keeps saying he'll get a job soon, but he's all talk and no action.
吉米總說要找工作,但他總是光說不做.