top blade

例句：

1. 1. The chef carefully sharpened the top blade of his knife.
   厨师小心翼翼地磨利了他的刀的顶部刃口。
2. 2.The carpenter used a top blade to cut the wood into pieces.
   木匠用一把顶尖的刀把木头切成了块。
3. 3. The chef's top blade was so sharp that it could slice through a hot potato in one swift motion.
   厨师的刀刃非常锋利，能够一挥而将热土豆切穿。