[无化] 氟化铁

SSS 2010-12-29

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Beauty is only skin deep. And the beauty of shiny white teeth is even less deep. Because a new study shows that fluoride forms a thinner protective shiel

发表于:2018-12-02 / 阅读(175) / 评论(0)

Scientific American(十二)月

英语听力听电影学英语：一个购物狂的自白 05

[00:01.24]It's crazy, but I guess that's the worId of high fashion? 这太疯狂了，但是我想这就是世界顶级时尚吧？ [00:04.44]- Yes. - Yeah, I know about that. - 没错 - 我知道这些的 [00:06.48]I am one of the best. I don't Iet

发表于:2018-12-07 / 阅读(234) / 评论(0)

听电影学英语：一个购物狂的自白

Dental Health

07 牙病的预防与治疗 DATE=2-27-01 TITLE=SCIENCE IN THE NEWS #2113 - (1)Dental Health BYLINE=Nancy Steinbach VOICE ONE: This is Sarah Long. VOICE TWO: And this is Bob Doughty with Science in the

发表于:2018-12-07 / 阅读(137) / 评论(0)

科技之光

英式发音和美式发音的区别

英语和美语在读音上的差异主要反映在元音字母a, o 和辅音字母r 的不同读音上。 1.在ask, can't, dance, fast, half, path 这一类的单词中，英国人将字母a 读作[a:]，而美国人则读作[?]，所以这些词在美

发表于:2018-12-18 / 阅读(320) / 评论(0)

英语学习方法

CNN 2010-01-01

KING: We welcome to Larry King Live. Good to have him back, former Governor of Pennsylvania, Tom Ridge. He was the first United States Secretary of Homeland Security from 2001 to 2003. He's President and CEO of Ridge Global and author of the book The

发表于:2018-12-20 / 阅读(149) / 评论(0)

CNN2010年(一)月

口腔临床英语对话第29期:正畸治疗(2)

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

发表于:2018-12-27 / 阅读(166) / 评论(0)

口腔临床英语对话

【饥饿游戏】23

The Training Center has a tower designed exclusively for the tributes and their teams. This will be our home until the actual Games begin. Each district has an entire floor. You simply step onto an elevator and press the number of your district. Easy

发表于:2018-12-28 / 阅读(122) / 评论(0)

饥饿游戏（英文版）

听歌学英语:They他们

听歌学英语:They他们 [00:13.81]They [img:00:16.57]032they.jpg [01:11.71]Who made up all the rules [01:15.19]We follow them like fools [01:18.74]Believe them to be true [01:22.72]Don't care to think them through [01:26.31]I'm sorry so sorry [01:

发表于:2019-01-07 / 阅读(161) / 评论(0)

听歌学英语

高速列车

Rob: Hello I'm Rob. Welcome to 6 Minute English. I'm joined today by Finn. Hi Finn. Finn: Hi Rob. Rob: Today we're talking about high-speed train travel. Many countries have very fast trains that whisk people from city to city in super-quick time. Fi

发表于:2019-01-07 / 阅读(253) / 评论(0)

六分钟英语

“拍脑袋决定”当选澳大利亚2015年度热词

Captain's call - a phrase plucked from the cricket pitch and politicised by former Australian Prime Minister Tony Abbott - has become the Macquarie Dictionary's Word of the Year for 2015. 拍脑袋决定（原意：队长的决定）一词源于板球运

发表于:2019-01-08 / 阅读(119) / 评论(0)

阅读空间

生命的奇迹(二)

Upon hearing her evaluation I became furious for I thought, Who is she to tell me what I can or cannot do. She does not even know me. I am a very determined and stubborn person! I believe it was at that very moment that I decided I would somehow, som

发表于:2019-01-08 / 阅读(121) / 评论(0)

英语美文

VOA标准英语2010年-Coal Burning Linked to Fluoride Diseas

A cluster of villages in China's Guizhou province has been plagued by an outbreak of disease that damages teeth and bones. Now, a new study by Chinese and American researchers puts the blame on polluted coal burned in home fireplaces. In small quanti

发表于:2019-01-14 / 阅读(149) / 评论(0)

VOA标准英语2010年(十)月

英文歌曲：R. City - Broadway

We're broad, we're broad, we're broader than Broadway We're broad, we're broad, we're broader than Broadway Skididididilly woah All to think a nigga came from mopping floors though From the nose bleed section to the first row Uninvited, still we came

发表于:2019-01-14 / 阅读(126) / 评论(0)

节奏布鲁斯

科学美国人60秒 SSS 海狸牙齿的奥秘

Ah yes.The ol' fluoride rinse at the dentist. Not pleasant. But hey, good for your teeth, right? 没错，这是牙医洗牙用的含氟漱口水。确实够闹心的。但毕竟对你的牙齿有益不是吗? Well now materials scientists have been

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2018年科学美国人1月

【小龟乐游记】冰封王座（11）

文本： Illidan: So, Warden Shadowsong, youve made it at last. I knew you would. Maiev: You have much to pay for, Illidan. Im taking you back to your cell. Illidan: ____(1)____. When I consumed the power of Guldans skull, I inherited his memories,

发表于:2019-01-23 / 阅读(144) / 评论(0)

小龟乐游记英语短文

SCIENCE IN THE NEWS - Dental Health

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

发表于:2019-01-30 / 阅读(142) / 评论(0)

科技之光

学个词 Learn a Word-VOA英语教学 2280-fluoride

今天我们要学的词是 fluoride. Fluoride 氟化物。The U.S. government is lowering the recommended amount of fluoride added to drinking water for the first time in more than 50 years. 美国政府50多年来首次降低饮用水建议添加的氟

发表于:2019-02-02 / 阅读(133) / 评论(0)

英语单词荟萃

英语歌曲:Ironic

Ironic －－by Alanis Morissette An old man turned ninety-eight He won the lottery and died the next day It＇s a black fly in your Chardonnay It＇s a death row pardon two minutes late Isn＇t it ironic...don＇t you think It＇s like rain on your

发表于:2019-02-06 / 阅读(110) / 评论(0)

好听的英文歌曲

音乐咖啡厅:Ironic 生命力

在这个世界上，有许多精彩的事，但也有很多无奈的事。命运总是会和你开个玩笑，这个玩笑可大可

发表于:2019-02-06 / 阅读(173) / 评论(0)

音乐咖啡厅

英语美文：生命即是奇迹

发表于:2019-02-20 / 阅读(124) / 评论(0)

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