她用力擦洗锅底，直到所有污渍都消失了。

She ___scoured the bottom of the pan until all the stains were gone.

志愿者们彻底搜寻了整个公园，寻找走失的小狗。

The volunteers ___scoured the entire park for the lost puppy.

救援队在森林里仔细搜寻失踪的徒步旅行者。

The rescue team ___scoured the forest for the missing hiker.

她用钢丝球把锅底彻底擦干净了。

She ___scoured the bottom of the pot with a steel wool pad.