Back in the day , when we ate mammoth meat off the bone and didn 't floss afterward , our teeth tended to fall out .
从前,当我们吃猛犸还要把肉从骨头上撕下来也不用牙线时,我们的牙齿很容易脱落。
All of us know that we need to brush our teeth twice-a-day and floss on a regular basis .
我们都知道应该一天刷两次牙并有规律地用牙线洁牙。
The important thing is that your child brush his teeth at least twice a day and floss before bedtime .
重要的是要让孩子一天至少刷牙两次,睡前用牙线洁牙。
Brush your teeth at least twice a day , floss at least once a day , see your dentist regularly , and avoid smoking or chewing tobacco .
至少两天要刷一次牙,每天用一次牙线,定期拜访牙医,并且避免抽烟和咀嚼烟草。
For example , rather than brushing your teeth and flossing before your shower , switch and shower first . Then , with your hair set , brush and floss .
比如说:洗澡前先不要刷牙或用牙线洁牙,而是先洗澡,将头发卷起来后再刷牙或牙线洁牙。
Brush and floss your teeth and wash your face .
刷牙、用牙线洁牙、洗脸。
Brush after each meal and floss daily .
每顿饭后刷牙并每天使用牙线。
So you might as well floss .
所以你也该用牙线。
One simple thing you can do to head off bacteria is floss your teeth .