每三个月把新的牙刷头寄到你邮箱里的服务。
A service that delivers a new toothbrush head to your mailbox every three months.
他们可以把牙刷头掰掉，几秒钟内把牙刷柄磨尖。
They can break the brush head off and sharpen the shaft in seconds.
一种牙刷头具有一个从刷头延伸的牙齿清洁单元。
A toothbrush head has a tooth cleaning element extending from the head.
在选择牙刷的时候要考虑到刷头的形状。
Consider the toothbrush's head shape when selecting your tool of choice.
要选择刷头合适的牙刷。
要选择刷头合适的牙刷。
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