'a concrete problem' is a correct phrase in written English.
You might use it when referring to a specific problem or issue that needs to be addressed. For example, "We must find a solution to this concrete problem before we can move forward."
1 I can't say anything without you jumping down my throat' You are arguing about the way things are said, rather than a concrete problem.
We rediscovered a simple, human weakness: that we cannot conceive of an abstract problem, or even a concrete problem involving huge numbers, except through one individual.
Mr Keyes is incapable of hearing a concrete problem (a case of flu? a burst water main?) without thinking about its abstract significance.So why is the ambassador such a hit with the right?
Were North America, Europe and Russia to make defense of the entire Euro-Atlantic region against potential ballistic missile attack a joint priority, they would — apart from addressing a concrete problem — in a single stroke undermine much of the threat analysis that sets Russia against NATO, and prove that trilateral cooperation on a key security issue is possible.
This screen allows the tutor to enter a concrete problem.
To take a concrete problem: how do we know that the equation K = I is not a theorem of λ?
A second dimension of incrementalism is that entrepreneurs need to approach the market and their vision in a way that strips down the big idea to solve an immediate, concrete problem that is often a fraction of the desired end result: the A starting point.
For Sanders, guns have been a more concrete problem.
A more concrete problem is that postseason series, best-of-five or best-of-seven sprints, are poor tools for separating the evenly matched teams that play them.
"This addresses a real, concrete problem," said the company's chief executive Aaron Easterly.
Brzezinski argued that the U.S. and Iran are "emphasizing" different aspects of the negotiations in order to convince their citizens they got the better end of the deal, but Fleischer maintained that the discrepancies signaled a more concrete problem.
