[化] 单烯

monoene的用法和样例：

例句

用作名词(n.)

The stability of the active intermediates, bend length of monoene and conjugated diene were discussed.过从反应活性中间体的稳定性以及共价键的键长，从理论上说明共轭二烯比单烯易亲电加成。

生活英语情景口语:我浑身都不舒服...

M: Hi Benjamin. My name is Dr. Green. What seems to be the matter? B: I've been feeling pretty ill for a few days now. M: what are your symptoms? B: I feel chilly, I've got cramps, I keep throwing up, and I feel dizzy and tired. M: it sounds like you

发表于:2018-11-30 / 阅读(216) / 评论(0)

生活英语情景口语

Penelope Cruz - Volver

Amber: Hello, I'm Amber, and you're listening to bbclearningenglish.com. Today, we listen to parts of an interview with film star Penelope Cruz! She talks about her new movie, 'Volver', what she likes about working with Spanish director Pedro Almodo

发表于:2018-12-02 / 阅读(296) / 评论(0)

Entertainment

VOA慢速英语2018 日本工程师为圆梦造8.5米巨型机器人

Japanese engineer Masaaki Nagumo had always dreamed of operating a robot from Mobile Suit Gundam. 日本工程师南云正章（Masaaki Nagumo）一直梦想着操作《机动战士高达》中的机器人。 That is the name of a popular Japanese an

发表于:2018-12-08 / 阅读(124) / 评论(0)

2018年VOA慢速英语(四)月

实战口语情景对话第93期:日式沙拉 Japanese Salad

Todd: OK, Hisa, why don't we talk about food? 希莎，我们为什么不谈谈食物？ Hisa: Good. 好的 Todd: OK, first of all, actually, can you cook? 首先，你会做饭吗？ Hisa: Yes, I can. 是的，我会。 Todd: Yeah. What can you cook

发表于:2018-12-18 / 阅读(132) / 评论(0)

实战口语情景对话

Japanese Engineer Builds Huge Robot of His Dreams

发表于:2019-01-03 / 阅读(156) / 评论(0)

2018年VOA慢速英语(四)月

专业术语—中草药成分英汉对照词汇M

M Madasiatic acid 崩大碗酸 Magnoflorine 木兰花碱 Magnolia cortex P.E 厚朴提取物 Magnolol 厚朴酚 Maitake mushroom P.E 灰树花提取物（舞茸提取物） Malonyl Oleanolic acid Hemi

发表于:2019-01-03 / 阅读(165) / 评论(0)

医务英语

Societe Generale chairman resigns

Societe Generale chairman resigns 法国兴业银行行长辞职 Societe Generale's chairman Daniel Bouton has announced his resignation, saying the personal attacks against him risked harming the bank. Mr Bouton has faced increasing criticism ever since a ro

发表于:2019-01-07 / 阅读(172) / 评论(0)

英语新闻

2006年VOA标准英语-WHO Says Malaria Cure's Efficacy At Risk

By Paige Kollock Washington, DC 20 January 2006 watch Malaria Treatments report The World Health Organization says the most effective cure for malaria could be in jeopardy, unless their new prescripti

发表于:2019-01-10 / 阅读(170) / 评论(0)

2006年VOA标准英语（一月）

VOA标准英语2011-Voting Continues in South Sudanese Refere

Southern Sudanese officials say at least 30 people have died in clashes along the border with northern Sudan as the second day concluded in the region's week-long referendum on independence. Election officials say voter turnout was 20 percent on Sund

发表于:2019-01-14 / 阅读(136) / 评论(0)

VOA标准英语2011年(一月)

60秒科学:Gene Stops Ovaries from Testifying

Gene Stops Ovaries from Testifying A mouse study in the journal Cell finds that a gene in females must remain active throughout her life to keep her ovaries from turning into testes. Karen Hopkin reports Little girls are made of sugar and spice and,

发表于:2019-01-30 / 阅读(268) / 评论(0)

60秒科学

Rules for Genetically Engineered Foods

76 关于基因工程食品的网络法规 DATE=7-26-01 TITLE=SCIENCE REPORT - Rules for Genetically Engineered Foods BYLINE=George Grow (Start at 01'02

发表于:2019-01-30 / 阅读(278) / 评论(0)

科技之光

Gene Therapy to Treat Hemophilia

64 基因疗法治疗血友病疗效有限 DATE=6-28-01 TITLE=SCIENCE REPORT - Gene Therapy to Treat Hemophilia BYLINE=Nancy Steinbach (Start at 01'02

发表于:2019-01-30 / 阅读(151) / 评论(0)

科技之光

英语里你不知道的几个小秘密

英语里你不知道的几个小秘密 The shortest complete sentence in the English language consists of only one word and that is Go. 英语里由一个单词组成的最短的完整的句子就是GO。 The oldest word in the English language is t

发表于:2019-02-04 / 阅读(166) / 评论(0)

实用英语

China reviews anti-dumping measures on Japanese chloroprene rubber

BEIJING, Aug. 8 (Xinhua) -- China on Wednesday started to review anti-dumping measures it imposed on chloroprene rubber imported from a Japanese company, the Ministry of Commerce said. The move came after the ministry received complaints that Japan E

发表于:2019-02-05 / 阅读(211) / 评论(0)

英语新闻

与数字有关的英语词根总结

与数字有关的英语词根总结 milli-【千分之一】例：milliampere（毫安）=milli（千）+ampere（安培） centi【百分之一】例：centimeter（厘米）=centi（百分之一）+meter（米） deci【十分之一】例：decibe

发表于:2019-02-06 / 阅读(225) / 评论(0)

英语学习方法

Chinese State Councilor meets US Comptroller General

BEIJING, Nov. 18 (Xinhua) -- Chinese State Councilor Ma Kai on Sunday met with visiting Comptroller General of the United States Gene L. Dodaro. Ma said the increase of communication on auditing between China and the United States will help promote t

发表于:2019-02-08 / 阅读(140) / 评论(0)

英语新闻

Venezuela's top athletes pray for Chavez

CARACAS, Jan. 6 (Xinhua) -- Venezuela's top athletes gathered at a church Sunday to pray for their ailing president, Hugo Chavez, one of their most steadfast supporters, the Venezuelan News Agency (AVN) reported. Chavez is our main athlete, weightlif

发表于:2019-02-17 / 阅读(136) / 评论(0)

英语新闻

10 Benefits of Rising Early, and How to Do It

10 Benefits of Rising Early, and How to Do It Recently, reader Rob asked me about my habit of waking at 4:30 a.m. each day, and asked me to write about the health benefits of rising early, which I thought was an excellent question. Unfortunately, the

发表于:2019-02-18 / 阅读(325) / 评论(0)

阅读空间

TED演讲:拇指游戏

Today I am going to teach you how to play my favorite game: 今天我要教你们怎么玩我最爱的游戏： massively multiplayer thumb-wrestling. 超级多人拇指摔跤 It's the only game in the world that I know of 这是我所知的唯一一个

发表于:2019-02-21 / 阅读(187) / 评论(0)

TED演讲教育篇

那些你不知道的单词小秘密

1. The shortest complete sentence in the English language consists of only one word and that is Go. 英语里由一个单词组成的最短的完整的句子就是GO. 2. The oldest word in the English language is town. 英语里最有年头的一个词

发表于:2019-02-25 / 阅读(192) / 评论(0)

英文语法词汇

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

acrosomal vesicle

advanced avionics data handling system