标签:Teeth 相关文章
Is it necessary to have cavities in the baby teeth repaired? 乳牙蛀成了洞还有必要补上吗? If the baby teeth are going to fall out, I don't think that it matters if they become decayed. 如果乳牙是要脱落的,我想蛀了也没有关
Part ten 第十章 Periodontal Treatment 牙周的治疗 Good morning. How are you today? 早安,今天好吗? Just fine, except that my gums are sore. I've noticed that they bleed when I brush my teeth. 不错,只是牙龈还痛,我发现刷牙
Can you show me, Doctor? 医生,能指给我看吗? Surely, please watch me in the hand mirror. I'll reach under the gum with a measuringinstrument. 完全可以,请看手镜里我是怎样做的,我要用计量用具捅到牙龈底下。 I'l
Ceratosaurus, although a pretty nasty predator, was not really suited for taking on adult size Stegosaurus or those long-necked sauropods found at the site. 角鼻龙,虽然是很凶残的掠食者,但肯定不适合攻击在石场发现的成年剑
Sperm whales form close family units for protection and to nurture their offspring. 抹香鲸形成亲密的家庭单元来保护自己并且养育它们的后代。 Great white sharks relate only during mating and will actually eat their young. 大白
In 1971, paleontologists discovered a massive hole in the ground in Wyoming. The cave opening had acted as a trap, unwary creatures fell to their death. 在1971年,古生物学家在怀俄明发现了地上的一个巨洞。这个洞口如同一个陷
He's got a big, thick bull-dog head and it's perfectly designed for grasping prey and crushing it. 它有着牛头犬一样又大又壮的脑袋,其设计非常适合抓住并且咬碎猎物。 His teeth are also designed to take a lot more pressur
Since the discovery of the La Brea pits, paleontologists have removed and catalogued over 1 million bones representing over 230 different species of animals. 从发现拉布雷亚沥青坑以来,古生物学家已经移出并编目了超过一百万个
Murky as well, and very rich in saline material, their pure indigo contrasts with the green waves surrounding them. 另外,它的水色偏暗而且含有丰富的盐,纯靛蓝色的水流和周围绿色的海水形成了鲜明的对比。 Moreove
Candle light Ben,it's dinner time,said Mom,one wet day.I'm coming,said Ben. Then all the lights went out.Help! I can't see you,said Ben. I'm here by the window,said Mom.Ben went to the window and he looked up the road at the houses. No one had a ligh
Mike washed his hands. He washed his hands with soap and water. He brushed his teeth. He brushed his teeth with toothpaste and water. He turned off the water. The sink was full of water. The water did not go down the drain. The water stayed in the si
Polymers-large molecules made up of many joined units of a more simple molecule. Examples are polysaccharides and polypeptides. Polypeptides; -chains of amino acids joined by peptide bonds. They are n
In toothbrushing, it is important to clean at the gum margins, because the bacteria usually accumulates here. Neglecting to clean the gum margins, the gums will become inflamed and will bleed easily on toothbrushing. 刷牙最重要的是针对牙齿的
This is the VOA Special English Health Report. Bad teeth can be painful -- and worse. They can even be deadly. Infections of the gums and teeth can release bacteria into the blood system. Those bacteria can increase the chances of a heart attack or s
A Healthy Monster 健康的怪物 Hi!I'm Maddy the Monster.嗨,我是怪物马蒂. This is my best friend,Anna.这是我的好朋友安娜. I am a young monster.我是个小怪物. I am ninety-nine years,five months,three weeks, four days,two hours a
DAVID GREENE, HOST: Right from how smells can make us more attractive, let's turn to a multibillion-dollar global industry that is devoted to making you look more attractive, teeth whitening. Just walk into any pharmacy. Go online. You'll see them -
Amy had a dentist appointment. It was time for her check-up. The dentist would see if she had any cavities. She arrived at the dentist, and signed in. They called her name. An assistant took x-rays of her teeth. The assistant then told her to wait in
Rachel: You were talking about Earth Hour and that's switching the lights off is one way to save electricity and protect the environment. What other things do you do in your life to save for example water? Steven: Well, as for me, I recycle all my wa
...for that perfect smile,but in the wrong hands,teeth whitening can cause permanent dental problems.The investigation by SKY news has found potentially cohesive chemicals being used in beauty salons by technicians with as little as one day's traini
SCIENCE IN THE NEWS - November 26, 2002: Dental Health By Nancy Steinbach VOICE ONE: This is Steve Ember. VOICE TWO: And this is Bob Doughty with Science in the News, a VOA Special English program abo