磨刀 磨尖 磨快 磨刃 磨锐的英文

sharpening

• 磨刀:    sharpen; stoning
• 磨:    mill; millstones
• 尖:    pointed; tapering
• 快:    fast; quick; rapid ...
• 刃:    the edge of a knif ...
• 锐:    sharp; keen; acute