knife side

例句：

1. 1.The chef carefully cut the steak to reveal its knife side.
   厨师小心翼翼地切牛排，露出它的刀刃侧面。
2. 2. The carpenter used a chisel to smooth the knife side of the table.
   木匠用凿子修整桌子的刀刃侧面。
3. 3.When cutting vegetables, it's important to keep the knife side flat and parallel to the cutting board.
   切蔬菜时，保持刀刃侧面平整且与切割板平行很重要。