钻出

She bobbed up from behind the fence.

她突然从篱笆后面出来。

The swimmer came out of the water and gasped for breath.

游泳的人从出来喘口气。

She dived in and bobbed up a few seconds later in the middle of the pool.

她潜入中，几秒钟后在游泳中央猛地出面。