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1.This teeth-roller is perfect for removing tartar from your teeth.
这个牙齿研磨器非常适合去除牙垢。
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2. Dentists often use teeth-rollers during cleanings to remove plaque and stains.
牙医在清洁时经常使用牙齿研磨器来去除牙菌斑和污渍。
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3.The patient was given a teeth-roller to help with the removal of tartar.
病人被给了一个牙齿研磨器来帮助去除牙垢。