牙本质牙釉质的

国家地理:Octopus Loses Arm 章鱼逃命大法

Here in the Timor Sea off northern Australia, take a look at a creature that seems to have the soul of a riverboat gambler. It moves through turf dominated by large hungry predators, and it fights these predators in a way that will astound you. This

发表于:2018-12-30 / 阅读(163) / 评论(0)

国家地理2007年

英伦广角激光可帮助啮齿类动物受损的牙齿再次生长

Ouch! About a quarter of all school-age kids will break or otherwise damage a tooth. Adults have their share of cracked chompers too. But what if fixing a busted bicuspid was as easy as zapping it with a laser? Preliminary work with young rats has mo

发表于:2019-01-02 / 阅读(146) / 评论(0)

英伦广角

美国国家公共电台 NPR 'Love, Simon' Is Your Typical Glossy, Hollywood, Teenage, Gay Rom-Com

LULU GARCIA-NAVARRO, HOST: Love, Simon, is your typical teenage rom-com - a boy, a mystery love interest, misunderstandings, treachery and, of course, annoying and goofy teachers. The title character, Simon, is, in fact, deliberately typical. (SOUNDB

发表于:2019-01-16 / 阅读(137) / 评论(0)

2018年NPR美国国家公共电台3月

英语听力文摘 English Digest 410、长蛀牙,怎么办？

Getting Rid Of Cavities Don: Sorry, I'm late. I was brushing my teeth. Yal: Brushing your teeth! Right before A Moment of Science? Why? D: I'm trying to get rid of a cavity . Y: Get rid of a cavity ? Are you stuck with a cavity once you have it? D: I

发表于:2019-02-16 / 阅读(104) / 评论(0)

英语听力文摘 English Digest

U.S. singer Fergie expects her first child

BEIJING, Feb. 19 (Xinhuanet) -- U.S. pop group Black Eyed Peas singer Fergie said on Monday that she is is pregnant. Josh Me BABY makes three!!!, she tweeted. She also shared superimposed pictures of herself and her actor husband Josh Duhamel as chil

发表于:2019-02-18 / 阅读(115) / 评论(0)

英语新闻

英语听力文摘 English Digest 177、保护牙齿

Getting Rid Of Cavities 牙痛是继续忍受还是提前做好防护?爱护牙齿，每天的必修课。 M:Sorry,I'm late.I was brushing my teeth. W:Brushing your teeth?Right before 'A Moment Of Science'? Why? M:I'm trying to get rid of a cavity. W

发表于:2019-02-24 / 阅读(141) / 评论(0)

英语听力文摘 English Digest

英语听力文摘 English Digest 223、DNA帮助捕获偷猎者

DNA Helps Catch Poachers 科学家们利用一种革命性的基因技术成功确定了走私犯屠宰大象的非洲地区，这些大象沦为全世界非法象牙贸易的受害者。利用非洲大象的DNA图谱，他们已发现最近缉获的象

发表于:2019-02-24 / 阅读(128) / 评论(0)

英语听力文摘 English Digest

口腔临床英语对话第9期:有关龋齿的解释(2)

Enamel is the hard outer tooth layer. 牙釉质是牙齿坚硬的外层。 The cavity gets larger by entering the softer second tooth layer, the dentin. 蛀牙洞到了牙齿的较软的第二层，也就是牙本质时，龋洞就会变得大的多。

发表于:2019-02-27 / 阅读(197) / 评论(0)

口腔临床英语对话

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