To sharpen one's blade, making diligent and intense preparations for an impending action, often implying a serious challenge or hostile confrontation.
比赛进入白热化阶段，双方队员磨刀霍霍，都想争夺最后的胜利。
As the competition entered its fierce stage, both teams were sharpening their blades, each aiming for the final victory.
Era:
Ancient
Frequency:
Next Idiom