她用刷子使劲擦洗厨房的水槽。
She ___scoured the kitchen sink with a brush.
她在房间里翻箱倒柜地寻找丢失的钥匙。
She was ___scouring the room for her lost keys.
农场主发现一些羔羊得了腹泻，立刻请兽医来治疗。
The farmer noticed several lambs had ___scours and called the vet immediately.
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