연마硏磨/練磨/鍊磨
[ yeonma ]
「명사」 Noun
• grinding; polishing; abrasion
The act of grinding and polishing a metal, rock, etc., and smoothening the surface.
• study; training; practice
The act of disciplining one's body and mind or acquiring knowledge, skills, etc.
Type:
Sino-Korean
Level:
Intermediate