脚步轻快

例句：

1. 1. She danced the night away with her friends in the park.
   她与朋友们在公园里跳舞直到深夜。
2. 2. The car sped up to catch the train.
   汽车加速以赶上火车。
3. 3. The bird flew swiftly across the sky.
   鸟儿迅速地飞过天空。