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Tilt the brush so the bristles are pointing at your gum line.
倾斜牙刷是的刷毛指向龈线。
youdao
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Nurse: Thatis the line for new patients (pointing to line).
护士：初诊病人站那条队(用手一指)。
youdao
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Nurse: Thatis the line for new patients (pointing to line).
护士：初诊病人站那条队(用手一指)。
youdao