值,氢离子(当量)浓度负对数值

pH value pH的用法和样例：

例句

I value this necklace at $5,000.我估计这条项链值五千美元。
The most frequent value in the statistical sense.在统计意义上最常出现的值。

Stephen King

Andrea: Hello, Im Andrea Rose and youre listening to bbclearningenglish.com. Today in Entertainment, we speak to well-known American horror writer Stephen King, who has just released his new novel, Blaze. The author of over 50 best-selling horror no

发表于:2018-12-19 / 阅读(121) / 评论(0)

Entertainment

Elle Macpherson

Amber: Hello, I'm Amber, and you're listening to bbclearningenglish.com. In Entertainment today, we listen to an interview with a woman who - in the 1980s and 90s - put the word 'supermodel' in the dictionary! She's Elle Macpherson. Elle began her b

发表于:2018-12-19 / 阅读(205) / 评论(0)

Entertainment

Identity Thieves’ New Ploy: Pharming

Identity Thieves’ New Ploy: Pharming 2 How do people pharm? Pharming scams take a few different forms: Attackers could use malicious code, such as a virus, planted on a user’s PC to track keystrok

发表于:2018-12-19 / 阅读(224) / 评论(0)

彭蒙惠英语

SSS 2008-04-23

This is Scientific American's 60-Second Science, I'm Karen Hopkin, this will just take a minute. Shakespeare once said: A rose by any other name would smell as sweet. And that is true today as it was 400 years ago. What's different now, though, is th

发表于:2018-12-24 / 阅读(145) / 评论(0)

Scientific American(四)月

[单词解析速记].JV470.(Neophyte.and.Murmur)

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thank you！

发表于:2018-12-30 / 阅读(125) / 评论(0)

单词解析速记

【突破英文词汇】phan, phen -- show 显示

1. cellophane /'seləfeɪn/ -- cellulose substance that shows through; transparent cellulose substance used as a wrapper When used as a wrapper, cellophane lets the purchaser see the contents of the package. 用玻璃纸包装使购买者能看到包内

发表于:2018-12-30 / 阅读(123) / 评论(0)

突破英文词汇

HEALTH REPORT - Staph Vaccine

HEALTH REPORT -May 29, 2002: Staph Vaccine By Nancy Steinbach This is the VOA Special English Health Report. American researchers say they have developed the first vaccine medicine that can prevent a

发表于:2019-01-02 / 阅读(119) / 评论(0)

健康与环境

PEOPLE IN AMERICA - Stephen Foster

PEOPLE IN AMERICA -October 20, 2002: Stephen Foster By Shelley Gollust (Photo - University of Pittsburgh) VOICE 1: I'm Shirley Griffith. VOICE 2: And I'm Steve Ember with the VOA Special English progr

发表于:2019-01-02 / 阅读(196) / 评论(0)

People in America

电影歌曲:Streets Of Philadelphia 《费城故事》

Streets Of Philadelphia 《费城故事》演唱者：Bruce Springsteen i was bruised and battered and I couldn't tell What I felt I was unrecognizable to myself I saw my reflection in a window I didn't know My own face Oh brother are you gonna leav

发表于:2019-01-03 / 阅读(118) / 评论(0)

电影歌曲

Paul Pholeros:要减贫先修房

1985年, 一名提供医疗卫生服务的土著领导人启发了建筑师保尔蓬乐若思（Paul Pholeros），在澳大利亚南部的一个土著小社区内，开展了一个不再有人生病的项目计划。关键的理念是：不光要考虑

发表于:2019-01-05 / 阅读(160) / 评论(0)

TED公开课:贫穷至进步

What Stephen Covey Taught Me About Work and Life

What Stephen Covey Taught Me About Work and Life My heart is heavy today. I just learned of the death of one of the most influential individuals in my life, a man who changed the way I think about the world and who guided me toward my current career

发表于:2019-01-07 / 阅读(152) / 评论(0)

阅读空间

英语语法：63 Hyphens

Grammar Girl here. Today's topic is hyphens. On Monday afternoon Pat was watching the cable channel CNBC and called me over to the TV because the hosts were talking about hyphens. Yup, in the middle of a segment on the economy, they started talking a

发表于:2019-01-30 / 阅读(220) / 评论(0)

英语语法 Grammar Girl

英语杂谈：51 The One With George Stephanopoulos

[Scene: Central Perk, everyone is there except Joey.] Monica: Alright. Phoebe? Phoebe: Okay, okay. If I were omnipotent for a day, I would want, um, world peace, no more hunger, good things for the rain-forest...And bigger boobs! Ross: Yeah, see.. yo

发表于:2019-02-04 / 阅读(149) / 评论(0)

英语杂谈

学个词Learn a Word 第463期 Uphill

今天我们要学的词是uphill。 Uphill, 是上坡的意思，引伸为艰难的，费力的。 An uphill battle, 就是一场艰苦的战斗。美国民主党总统参选人希拉里.克林顿星期二赢得了西维吉尼亚州党内初选的胜利

发表于:2019-02-06 / 阅读(103) / 评论(0)

英语单词荟萃

Ganso could be out until 2013, says physio

Ganso could be out until 2013, says physio RIO DE JANEIRO, Sept. 28 (Xinhua) -- Brazil midfielder Paulo Henrique Ganso could be forced to wait until next year to make his debut for new club Sao Paulo. Ganso, who joined the Brazilian top division outf

发表于:2019-02-06 / 阅读(189) / 评论(0)

英语新闻

音乐咖啡厅:Beyonce联合Lady Gaga 性感出击Video Phon

音乐咖啡厅:Beyonce联合Lady Gaga 性感出击Video Phone Artist：BeyonceLady Gaga Song：Video Phone Shawty, what your name is? Them hustlas keep on talkin' They like the way I'm walkin' You saying that you want me So press record, I'll let yo

发表于:2019-02-07 / 阅读(173) / 评论(0)

音乐咖啡厅

2016年CRI 21st Francophonie Festival to Launch in China

The 21st Francophonie Festival is focusing on sharing values and cultural diversity exchanges, of French language but also of multilingualism. Robert Lacomne, Cultural Counselor at the Embassy of France introduces the activities. The main activities

发表于:2019-02-13 / 阅读(134) / 评论(0)

2016CRI中国国际广播电台

2018年CRI Ramaphosa: BRICS summit hugely successful

South African President Cyril Ramaphosa is hailing the conclusions from this year's BRICS summit. Addressing a media briefing after the conclusion of the BRICS Summit in Johannesburg, Cyril Ramaphosa, who chaired this year' event, says a wide variety

发表于:2019-02-22 / 阅读(142) / 评论(0)

2018CRI中国国际广播电台

omg美语：0614 OMG! 美语 Phonte Talk

Give me a call! 接电话,最平常的说法是Hello?正式一点是 Hello? This is Baijie 或者 Hello? Baijie speaking.如果你想问谁在打电话,你可以这样问Excuse me, who is this? May I ask who's calling, please?

发表于:2019-02-26 / 阅读(155) / 评论(0)

OMG美语

英语听力：Prophet Muhammad 先知穆罕默德 - 1

In Cairo, a muezzin calls faithful Muslims to prayer. Its the same call that sounds five times a day every day in cities across the world. Nearly a quarter of the people on earth respond to it, bound together by the enduring spirit of Islam. ''God is

发表于:2019-03-01 / 阅读(210) / 评论(0)

英语听力：文化博览2008年

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

braille type push button

bullase

call to task

celery cabbages