氟化钛(IV) {四氟化钛}

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(159) / 评论(0)

Scientific American(十二)月

求职英语一part f_iv-x_new

[00:00.00]9.I:What do you think is the relationship [00:02.27]你认为 [00:04.55]between the subjects you have taken and the job you are seeking? [00:06.99]你曾修读的科目和你申请的这份工作有何关系？ [00:09.43]A:I have taken cour

发表于:2018-12-05 / 阅读(173) / 评论(0)

求职英语

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(119) / 评论(0)

科技之光

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(143) / 评论(0)

口腔临床英语对话

闲谈英语-Receiving Visitors(2)

A: I'm really glad that you came to see me. B: I had to. I was missing you a lot. A: I was missing you too. B: So, why haven't you visited me? A: I've actually been busy lately. B: What have you been doing? A: I've just been working really hard. B: I

发表于:2019-01-06 / 阅读(156) / 评论(0)

英语闲谈

闲谈英语-Receiving Visitors(1)

A: Thanks for coming to see me today. B: It's no problem. I was really missing you anyway. A: I missed you too. B: Why haven't you tried to come see me then? A: I've been really busy. B: Doing what? A: Working. B: I would've come to see you sooner, b

发表于:2019-01-06 / 阅读(160) / 评论(0)

英语闲谈

2013年美国好声音 Titanium - Madilyn Paige

You shouted out, But I can't hear a word you say I'm talking loud not saying much I'm criticized but all your bullets ricochet You shoot me down, but I get up I'm bulletproof, nothing to lose Fire away, fire away Ricochet, you take your aim Fire away

发表于:2019-01-10 / 阅读(121) / 评论(0)

The Voice 美国好声音

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(125) / 评论(0)

VOA标准英语2010年(十)月

VOA标准英语2011--Indian PM Calls on Anti-Corruption Activ

Indian PM Calls on Anti-Corruption Activist to End Hunger Strike 印度总理呼吁反腐分子停止绝食 India's Prime Minister Manmohan Singh has called on activist Anna Hazare to end his hunger strike being conducted to call for tougher anti-cor

发表于:2019-01-14 / 阅读(125) / 评论(0)

VOA标准英语2011年(八月)

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

发表于:2019-01-20 / 阅读(129) / 评论(0)

2018年科学美国人1月

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(129) / 评论(0)

科技之光

2006年VOA标准英语-Civil Rights Activist Dubious of Darfur De

By Nico Colombant Abidjan 05 May 2006 Members of Sudan Liberation Army, SLA, walk out of meeting in Abuja, Nigeria, Friday A top civil rights activist for Sudan's Darfur region is dubious about the ne

发表于:2019-01-31 / 阅读(184) / 评论(0)

2006年VOA标准英语（五月）

音乐咖啡厅:Lorenzo Licitra - Titanium

You shout it out But I can't hear a word you say I'm talking loud not saying much I'm criticized but all your bullets ricochet You shoot me down but I get up I'm bulletproof nothing to lose Fire away fire away Ricochet you take your aim Fire away fir

发表于:2019-02-01 / 阅读(182) / 评论(0)

音乐咖啡厅

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(122) / 评论(0)

英语单词荟萃

2001春季高考英语—第二卷IV

第二卷（共 55分）四、单词拼写（共 10小题，每小题1分；满分10分）根据下列句子所给单词的首字母，在句子右边的横线上，写出空缺处各单词的正确形

发表于:2019-02-06 / 阅读(188) / 评论(0)

实用英语

2000年春季高考英语—第二卷IV

2000年普通高等学校春季招生全国统一考试（北京、安徽卷）英语 National Matriculation Engkish Test(NMET 2000) 第二卷（共55 分） IV.单词拼写（共10小题，每小题

发表于:2019-02-06 / 阅读(209) / 评论(0)

实用英语

2013年美国好声音 Titanium - Michelle Chamuel

发表于:2019-02-11 / 阅读(123) / 评论(0)

The Voice 美国好声音

VOA标准英语2011--Activists Push for Right to Counsel in US Civil Cases

Activists Push for Right to Counsel in US Civil Cases People who are charged with crimes in the United States have a constitutional right to have an attorney provided to them by the government, if they can not afford one on their own. Legal advocates

发表于:2019-02-12 / 阅读(139) / 评论(0)

VOA标准英语2011年(十二月)

英文歌：Megan Nicole深情翻唱冠David Guetta的单曲Titanium

You shout it loud But I can't hear a word you say I'm talking loud not saying much I'm criticized but all your bull is brick of shame You shoot me down, but I get up I'm bulletproof nothing to lose Fire away, fire away Brick of shame, take your rain

发表于:2019-03-02 / 阅读(133) / 评论(0)

英文最新流行歌曲

英语歌曲:Megan Nicole深情翻唱冠David Guetta的单曲Titanium

Megan Nicole深情翻唱冠David Guetta的单曲Titanium Megan Nicole是美国德克萨斯州休斯顿市人，youtube 翻唱红人，因与jason chen共同翻唱pink的 Raise Your Glass 所被人熟知，被许多网友津津乐道的是其甜美的长

发表于:2019-03-11 / 阅读(154) / 评论(0)

流行英文歌曲

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

abut

acoustic pattern

aggests

All Quiet on the Western Front