That acts as a good reminder to brush each tooth thoroughly.

那可以提醒你要把每颗牙彻底刷干净。

youdao

The two coins, one good and one bad, are like two sides of a single saw-tooth.

两个硬币，一个好一个坏，就像是一个齿的两个边。

youdao

Richmond cautioned, however, that tooth size isn't always a good indicator of body size.

不过，Richmond警告说牙齿的尺寸并不一定与身材的尺寸成正比。

youdao

Al-Zaidi, who faced the cameras wrapped in an Iraqi flag, was missing a tooth, but otherwise appeared in good health.

VOA: standard.2009.09.15

At the same time, Scotland's chief dentist urged parents to ensure their children stuck to a good tooth-brushing routine.

BBC: Scottish children's teeth 'best on record'

The popular brand Glide is actually PTFE, or Teflon, so it is slip-free, and because it's actually in a ribbon form, it has good contact with the tooth.

WSJ: How to Be a Better Flosser

"If you look at a device like the BlackBerry, I know the U.S. government has gone over that with a fine-tooth comb, and that makes me feel good, " said Mr. Wysopal.

WSJ: T-Mobile in Talks for New Phone