their teeth with some small tree branches (树枝) 1800 years ago . People 34 a kind of toothbrushes with pig hair and bamboo. It might be the world's earliest form of toothbrushes. As time went by, the form of toothbrushes
They also had higher relative risk ratio for long sleep duration (RRR=1.75, 95% CI=1.40–2.19; RRR=1.48, 95% CI=1.21–1.81, respectively).ConclusionsCompared to people with 20 or more teeth, older adults with fewer than 10 teeth have higher risks for short and long sleep durations....
B“Brush your teeth every day," say dentists. But in Africa, some people brush their teeth all day long. They chew a small stick to brush their teeth. In Senegal(塞内加尔),people call the chewing stick “sothio” . It means “clean” in their lan-guage. In East Africa, people call...
Conclusion: Although the study groups are small, differences were observed in the plaque removing efficacy of the brushes with the three-headed brush performing better for those adults who required help, some or total, to brush their teeth. The Superbrush(R) can thus be recommended for brushing...
根据“But in Africa, some people brush their teeth all day long. They chew a small stick to scrub (刷洗) their teeth.”可知,在非洲,有些人用小棍子刷牙。故选B。 (2)题详解: 词句猜测题。根据“But in Africa, some people brush their teeth all day long. They chew a small stick to ...
...a small town peopled by lay workers and families. 普通工人和家庭居住的小镇 柯林斯高阶英语词典 Grass's novels are peopled with outlandish characters... 格拉斯的小说里都是些稀奇古怪的人物。 柯林斯高阶英语词典 British history of the 19th century is peopled by energetic reformers... 19世纪英...
With all kinds of toothbrush and toothpaste ads everywhere, people have come to realize the importance of protecting teeth. "There is no decayed tooth(龋齿) for young children" has become the goal of all parents. Bad teeth may cause a lot of pain or even death. Infections of gums (牙龈)...
I have a permanent headache from grinding my teeth. I wake up nightly with anxiety. I look and feel like crap too. This is the real me at 40. I am all of the other things too, in case you are about to send help. I did not break at 40, something in me broke at 40. There ...
Each sibling is distinct with their own unique tendencies and characteristics. Some of them vary to a degree that makes it seem they couldn't have come from the same parents. All in all, this is a series that keeps you engaged as long as you're not too much of a stickler about the ...
They keep a small stick in their mouth to chew (咀嚼) or scrub (洗刷) their teeth all day.People cut the sticks from trees.They are the African toothbrushes.People there are used to brushing their teeth with sticks.Africans think the sticks work better than toothbrushes.The sticks come ...