单词：fluoride-containing polishing paste
单词：fluoride-containing polishing paste 相关文章
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
Scientific American(十二)月
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
科技之光
[00:00.00]Unit 8 My Toys [00:05.58]1.Listen.Point.Say. [00:19.62]What do you want? [00:23.18]I want the orange ball. [00:27.11]2.Listen.Say.Do the actions. [00:43.45]My toys are in my toy box.I take them out to play. [00:48.89]And when I've finished
新派英语第一册
pale-----------苍白的 page----------页面 paste---------酱 paper---------纸 patient-------有耐心的 pain-----------疼痛 paint----------油漆
用听的背单词-基础2000MP3(h-z)
点心及小吃 中式： 中式点心dim sum(饮茶Yum Cha) 油条twisted cruller 豆浆bean milk 豆腐花beancurd jelly 包子bum 豆沙包smashed bean bun 馒头steamed bread 花卷twistbread 馄饨wonton 锅贴fried wontons 水饺boiled dumpling
英文语法词汇
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
口腔临床英语对话
1. Q: Where is the conversation most probably taking place? A. At a newsstand. B. At a car dealer's. C. At a publishing house. D. At a newspaper office. 2. Q: What do we know about the man? A. He wants to get a new position. B. He is asking the woman
英语四级听力-短对话
Ben: Tell me that's not Gorbachev. OK, it's resources. Iron; I can get one of those. Pottash. Mom, where do we keep the Pottash? Carol: She's in the bathroom. What is all this? Ben: You can't tell! Carol: A map of Russia, drawn by keeping a pen betw
成长的烦恼第五季
《Letter to Me》 是讲一个成熟男人写了一封信，寄给十七岁时的自己。第一次听到这首歌时心马上静了下来，想起了自己的中学时代。回忆中有很多青涩岁月，有很多自己觉得不能逾越的崁，有很多的困惑迷茫。给十七岁的自己写一封信：不要为了分手而心如刀绞，你最终能够熬
音乐咖啡厅
unit 4 How do I make it? [00:05.52]单元四 我怎样做它？ [00:07.65]Look and learn [00:09.13]看并且学习 [00:10.61]I'd like to make a pizza. [00:12.73]我不喜欢做比萨饼。 [00:14.86]There's a cookery programme on TV at twelve o'clock
沪教版牛津小学英语六年级
For All Book Lovers: Chapter 1 Now, the VOA Learning English program Words and Their Stories. When you learn a foreign language, it can be very difficult to know the best word to use in a situation. This show can help you learn how and when to use Am
2016年VOA慢速英语(六)月
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
VOA标准英语2010年(十)月
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
2018年科学美国人1月
Me vs. My Boss 我和我的老板 When I Take a long time--I am slow. 我用了很长时间我太慢。 When my boss takes a long time--He is thorough. 我老板用了很长时间他工作仔细。 When I don't do it--I am lazy. 我不做懒。 When
英语小达人
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
科技之光
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
英语单词荟萃
Dylan Mondegreen，真名Borge Sildnes，来自挪威又是北欧的独立音乐，那的小清新个个都吸取 了大自然的神韵，几乎就是独立清新的精神家园。 Dylan Mondegreen的声音让人想到澳洲的Tamas Wells，都是水一
好听的英文歌曲
How You Made Money 你怎么赚的钱 A young man asked an old rich man how he made his money. 一个年轻人问一位富有的老人是怎样赚到钱的。 The old guy fingered his worsted wool vest and said, Well, son, it was 1930. The depth of t
英语小达人
tableware 餐具 chopsticks 筷子 knife 刀 fork * spoon 匙 tea spoon 茶匙 soup spoon 汤匙 ladle 大汤匙 carving knife 切肉刀 wine glass 酒杯 beer mug 啤酒大杯 tea cup 茶杯 cup and saucer （茶）杯和托碟 coffee pot 咖啡壶
雅思英语