People's brains actually started to crave toothbrushing.

人们的大脑开始渴望刷牙。

University College London (UCL) analysed 66 sources of toothbrushing advice from around the world.

伦敦大学学院 (UCL) 分析了来自世界各地的 66 个刷牙建议来源。

MARC WITTMANN: Why would you want to memorize  your toothbrushing when you've done this for

MARC WITTMANN：既然你已经这么做了，为什么还要记住你的刷牙方式呢？

Toothbrushing is broadly similar to the process on earth, and astronauts are even allowed to bring up their own preferred brand of toothpaste.

刷牙的过程与在地球上大致相同，宇航员甚至可以使用自己喜欢的牙膏品牌。