a toothbrush with an electric motor in the handle that vibrates the head of the brush

methods:50 children aged 6 to 7 years old were selected and divided into 2 groups according to the use of sonic electric toothbrush and traditional manual toothbrush(control group).

方法：选择年龄6～7岁的儿童50例，实验组使用声波震动牙刷，对照组使用儿童保健牙刷。

i took the dog around the block to get out of the house, and i came back to see her leaving herr black oom. my electric toothbrush in her hand mail .

为了逃出去，我带着狗出去遛了遛。我回来的时候正巧碰见她出来，手里拿的东西是——我的电动牙刷。

this electric toothbrush is our latest promotion.

是敝公司的最新产品。

also consider common dental care questions. should you use an electric toothbrush or a regular toothbrush?

还要考虑常见的牙科保健问题，应该用电动牙刷还是普通牙刷？

brushing your teeth is not a short-term thing, it should be a long time to insist on doing, you do not want an electric toothbrush can help you day whitening teeth!

刷牙并不是一件短期的事情，还应该长期来坚持去做，你也别想一个电动牙刷就能帮你一天美白牙齿！

an intervention could be, for example, to give some patients an electric toothbrush that helps them care for their mouths better, while other patients just get a regular toothbrush.

举例来说，干涉就是在一些病人用普通的牙刷时，给另一些病人一把电动牙刷，它能帮助他们更好地照顾他们的口腔。

the electric toothbrush comprises a handle and bristles.

由刷柄和刷毛构成。

the first cordless rechargeable electric toothbrush was introduced by general electric at the same time.

与此同时，通用电气公司推出了第一个可充电的电动牙刷。

purpose:to evaluate the efficacy of using sonic electric toothbrush to clean the teeth and control dental plaque in children.

目的：观察儿童使用声波震动牙刷清洁牙及控制菌斑的效果。

if you have recently considered to start an electric toothbrush, souness two generation of inverter electric toothbrush is also very worthy of recommendation!

如果你最近也考虑入手一把电动牙刷，索纳斯二代变频电动牙刷也是十分值得推荐的！

the electric toothbrush comprises a protecting cover, a rotary brush head, a rotating shaft, a power handle and a control switch.

它包括保护罩、旋转刷头、转轴、动力手柄和控制开关。

his electric toothbrush was better.

他的电牙刷比他好...

in 1939 the first electric toothbrush was produced in switzerland, but didn't appear on the open market until the 1960s.

1939年瑞士生产出第一个电动牙刷，但是直到20世纪60年代它才出现在公开市场。

if time is a factor in your regular morning and nightly ritual, at least invest some money in an electric toothbrush .

如果是因为时间仓促， 那么至少买个电动牙刷吧。

i took the dog around the block to get out of the house, and i came back to see her leaving her room… my electric toothbrush in her hand.

为了遁出去，我带着狗出去遛了遛。我返来的时候正巧遇见她出来，手里拿的器材是――我的电动牙刷。

your electric toothbrush will beep to notify you that dutiful brushing twice a day every day for the past six months has earned you enough points for a 10 percent discount on your next checkup.

你的电动牙刷会发出声音，提醒你注意一天保证刷两次牙，会让你在过去的6个月中，赚得足够分数，以获得下一次健康体检的9折优惠。

gradually put some small enough to learn to accept the final souness two generation of inverter electric toothbrush brushing will become a necessary weapon in your life!

渐渐地把一些小不足去学会接受，最终索纳斯二代变频电动牙刷会成为你生活中必不可少的一件刷牙利器！