electric toothbrush

基本解释

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？
He has developed several prototypes of hand-cleaning devices that can be mounted on walls, as well as a portable, battery-operated model the size of a large electric toothbrush.
他发明了好几种洁手装置的原型机，这些机器可以悬挂在墙上，跟那种便携式的电动模型一样，大小相当于一支较大的电动牙刷。
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。

Instead, it would recharge like an electric toothbrush whenever the car is stacked.
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