Please brush your teeth before you go to bed.

在你上床睡觉之前，请先刷牙。

youdao

Please brush your teeth very thoroughly in spite of the discomfort.

尽管不舒服但是刷牙仍然要刷的很透彻。

youdao

Please brush your teeth, as no one wants to smell your morning-coffee/last-night's-happy-hour breath.

一定要刷牙，因为没人愿意闻到你的清晨咖啡或者做完快乐晚餐的味道。

youdao