up-and-down motion meaning in Chinese
垂直方向往复运动
挥舞运动
上下运动
Examples
- Brush from your gumline to the chewing surface of your teeth with up - and - down motions . 4
4颌面平握牙刷，轻柔刷牙。 - Flatten the blinds then wipe with a 1 : 9 dilution of l . o . c . multi - purpose cleaner using a towel . carefully wipe the blinds in an up - and - down motion
先将百叶帘开至平方式，然后用毛巾沾上已1 : 9稀释的清洁剂，在百叶帘由上而下，小心地抹。 - Never snap it into the gums . hold the floss tightly against the tooth . gently rub the side of the tooth , moving the floss away from the gum with up - and - down motions
2去除牙菌斑握住牙线让其紧靠牙，用牙线扫过牙，紧靠牙边缘上下刮擦。 - Keep 45 degree angle between bristle and teeth surface and press the part between teeth and gums . then make some small circles gently . followe with up - and - down motions from the gum line
将牙刷刷毛与牙表面成45度角斜放并轻压在牙和牙的交界处,轻轻地做小圆弧的旋转,上排的牙从牙处往下刷,下排的牙从牙处往上刷。