There are two rows of soft gum stimulators, positioned on either side of the brush head that massage the gums.

它有两排刺激牙床的软刷，在刷头的两旁为你的牙床做按摩。

youdao

I'm not talking about long enough to brush gently on my shoulder - when I tilt my head.

我不是指那种-当我抬起头便能扫到我肩头的长度。

youdao

Then head back to the prep books to brush up on the concepts you still don't know or understand.

然后回过头来看看考试准备书，快速学习一下你还不了解或不懂的概念。

youdao

One night in early autumn, with the swampy ground of the Nature Preserve papered with fallen leaves, I was hunkered down to examine a dead snake about a foot in length whose color I thought might in life have been green, when, as I stood, I felt something brush the top of my head.

NEWYORKER: Wakefield