this is a dental floss bar, it’s used for cleaning between the teeth . You see, you can floss your teeth by this end with thread on it or use the other softly pointed end as a toothpick to do the same thing.
    Well I prefer this end, it’s less harmful to our teeth, don’t you think ?
    这是牙线棒，用于清洁牙齿中间（残留物）的。 你看，你可以用带线的一头踢牙，或者用另一个柔软的尖头作为牙签来做同样的事情。
    好吧，我更喜欢这个末端，它对我们的牙齿的伤害较小，你不觉得吗？