cast blade

例句：

1. 1. The chef carefully casts the blade to ensure it's even and sharp.
   厨师小心翼翼地将刀片抛掷，确保它平整且锋利。
2. 2. The carpenter used a cast blade to cut the wood for the table legs.
   木匠使用一把铸造的刀片来切割制作桌子腿的木材。
3. 3. The artist cast a blade of grass into the water to create a naturalistic scene.
   艺术家把一片草叶铸造成刀刃状，放入水中以创造出自然景观。