Lombard next chose an unusually high and thick clump of brush, and cleared a small space three feet across in the centre of it, scattering twigs on the uncovered earth to keep off its chill.
伦巴第先生在一丛较厚的灌木中清出了一个三英尺见方的空地，让后将碎枝铺在地上隔绝寒冷的地气。
My son is three years old; he is learning to use the potty and brush his teeth at the moment.
我的儿子三岁了，眼下开始进行如厕和刷牙学习。
The dentist advises me to brush my teeth three times a day.
牙医建议我一天刷三次牙。
Replace your brush every three to four months, sooner if it's frayed, and right after you've had a cold, flu, mouth infection or sore throat.
每三至四个月更换你的牙刷，牙刷有磨损的话就早点换，如有伤风，感冒，口腔感染或咽喉肿痛的话也应立即更换牙刷。
Even the most careful brushing reaches only three-fifths of all tooth surfaces. And dental floss can go where no brush has gone before: between teeth, along the gumline.
因为即使最认真地刷牙也只能刷到所有牙齿表面的五分之三，而牙线能够到达牙刷从没到过的地方：牙缝和牙龈线附近。
The setting potion and gradient of downstream guide slab after three-tank oxidation ditch brush directly influences the efficiency of the three-tank oxidation ditch.
三槽式氧化沟转刷下游导流板的设置位置和安装的倾角角度直接影响着三槽氧化沟的运行效果。
The setting potion and gradient of downstream guide slab after three-tank oxidation ditch brush directly influences the efficiency of the three-tank oxidation ditch.
三槽式氧化沟转刷下游导流板的设置位置和安装的倾角角度直接影响着三槽氧化沟的运行效果。
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