up - and - down motion造句

例句与造句

1. 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。
2. 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。
3. 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。
4. 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。
5. It's difficult to find up - and - down motion in a sentence. 用up - and - down motion造句挺难的