bit jumping

例句：

1. 1. The dog jumped over thefence excitedly.
   狗兴奋地跳过了篱笆。
2. 2. She leaped into the pool withjoy.
   她高兴地跳进了泳池。
3. 3. The child bounded across the playground.
   孩子欢快地在操场上奔跑。