knife edge support

例句：

1. 1.The chef carefully placed the knife on the cutting board to ensure a clean cut.
   厨师小心翼翼地将刀放在切板上，以确保切得干净。
2. 2.The knife edge support is designed to prevent the blade from slipping during use.
   刀锋支撑设计用来防止刀片在使用过程中滑动。
3. 3.The chef used the knife edge support to make precise cuts in the meat.
   厨师使用刀锋支撑在肉上进行精确的切割。