diabolo

例句：

1. 1. He used a diabolo to cut the rope.
   他用一把小刀割断了绳子。
2. 2. She carried a diabolo in her hand.
   她手里拿着一把匕首。
3. 3. The saber was sharp enough to slice through the butterfly's wings.
   这把剑锋利到可以切断蝴蝶的翅膀。