sharp layer 예문

• Birch was the guy who kept the fictitious Chicago Hope Med Center afloat, who supplied a passionate, razor-sharp layer of legalese between the surgeons and a litigious public.
• In the wall of a massive canyon that stretches for thousands of miles, there are sharp layers of rock, rather like the formation that causes a striped pattern on the walls of Arizona's Grand Canyon, said Kenneth S . Edgett, a co-author of the study in Science.