为固定螺钉用的铰孔

Supermassive Black Holes 超大质量黑洞 - 8

In every galaxy scientists looked at, they found evidence for a supermassive black hole. NGC 3115 NGC 3377 NGC 3379 In M31 and M32 In total there is probably 20-30 or so black holes that have been fou

发表于:2018-12-07 / 阅读(386) / 评论(0)

超大质量黑洞

Supermassive Black Holes 超大质量黑洞 - 1

In March 2000, two astronomers made an extraordinary discovery, one that is set to overturn our understanding of how the universe formed. We're never going to see a time like this in astronomy again.

发表于:2018-12-07 / 阅读(389) / 评论(0)

超大质量黑洞

Supermassive Black Holes 超大质量黑洞 - 2

But we are just one in 125 billion galaxies of different shapes and sizes spinning through space. Yet scientists haven't been able to explain how a single one of these galaxies was created. Galaxy for

发表于:2018-12-07 / 阅读(356) / 评论(0)

超大质量黑洞

Supermassive Black Holes 超大质量黑洞 - 4

This ferocious heart of brilliant hot gas is called a quasar. Scientists thought this whirling mass might be caused by a giant black hole sucking up gas and stars, literally feeding on the center of a

发表于:2018-12-07 / 阅读(302) / 评论(0)

超大质量黑洞

VOA慢速英语2011--Blue Holes: Some of the Least Explored Areas on Earth

EXPLORATIONS - Blue Holes: Some of the Least Explored Areas on Earth BARBARA KLEIN: Im Barbara Klein. STEVE EMBER: And Im Steve Ember with EXPLORATIONS in VOA Special English. A blue hole is a flooded sea cave with a hole that opens up at the lands s

发表于:2018-12-07 / 阅读(100) / 评论(0)

2011年VOA慢速英语(十一)月

温馨夜读II PART4 12.18 Holes in His Mind

[00:00.52] 12.18 Holes in His Mind [00:06.29]Major James Nesmeth had a dream of improving his golf game and he developed a unique method of achieving his goal. [00:14.35]Until he devised this method, he was just your average weekend golfer, shooting

发表于:2018-12-26 / 阅读(87) / 评论(0)

温馨夜读II

双语有声阅读:Black Holes 黑洞

What is a black hole? Well, it's difficult to answer this question, since the terms we would normally use to describe a scientific phenomenon are inadequate here. Astronomers and scientists think that a black hole is a region of space (not a thing) i

发表于:2019-01-02 / 阅读(80) / 评论(0)

双语有声阅读

电影歌曲:Supermassive Black Holes Muse

Supermassive Black Holes Muse oh baby dont you know i suffer? oh baby can you hear me moan? you caught me under false pretences how long before you let me go? you set my soul alight you set my soul alight (you set my soul alight) glaciers melting in

发表于:2019-01-03 / 阅读(115) / 评论(0)

电影歌曲

California Dreaming重庆森林

California Dreaming Mamas and Papas All the leaves are brown and the sky is grey I've been for a walk on a winter's day I'd be safe and warm if I was in L.A. California dreaming on such a winter's day! Stopped into a church I passed along the way Wel

发表于:2019-01-03 / 阅读(85) / 评论(0)

英语金曲精听

SCIENCE IN THE NEWS - Stephen Hawking and Black Holes / Quan

SCIENCE IN THE NEWS - Stephen Hawking and Black Holes / Quantum Theory By Caty Weaver Broadcast: Tuesday, August 17, 2004 VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Bob Dought

发表于:2019-01-07 / 阅读(112) / 评论(0)

科技之光

美国俚语： screw around 胡闹; 不作正经事

A: Quit screwing around and work on your paper, Max! A: Max, 不要胡闹了, 作你的报告去吧! B: I don\'t want to. How can I write about something I never read? B: 我不想啊。要我怎么样写我都没读过的东西嘛? 你有没有发现

发表于:2019-01-08 / 阅读(104) / 评论(0)

美国俚语

美国俚语：screw around with someone 招惹某人; 对某人态度随便

A: A piece of advice. Don\'t screw around with her. She\'s got a terrible temper. A: (给你)一个忠告, 别跟她乱来, 她的脾气可坏得很! B: She does? But she looks like a sweet little angel. B: 是吗? 但是她看起来像个可爱善良的

发表于:2019-01-08 / 阅读(118) / 评论(0)

美国俚语

VOA慢速英语2010年-EXPLORATIONS - Blue Holes: Some of the

BARBARA KLEIN: Im Barbara Klein. STEVE EMBER: And Im Steve Ember with EXPLORATIONS in VOA Special English. A blue hole is a flooded sea cave with a hole that opens up at the lands surface. These cave systems form in carbonate rock, often on islands.

发表于:2019-01-12 / 阅读(112) / 评论(0)

2010年VOA慢速英语(十一)月

New Data Adds to Understanding of 'Black Holes'

New Data Adds to Understanding of 'Black Holes' WASHINGTON Scientists continue to learn more about black holes in space, places where the pull of gravity is so strong that not even light can escape. Black holes occur after supergiant stars explode in

发表于:2019-01-14 / 阅读(125) / 评论(0)

VOA标准英语2016年(九月)

Lesson 127 - NOT ALL THERE / HAVE A SCREW LOOSE

not all there to have a screw loose 我们经常会发现有的人似乎脑子不太正常。也许是因为现代生活过于紧张，美国是有不少精神不正常的人。据说，美国人在口语

发表于:2019-02-01 / 阅读(164) / 评论(0)

美国习惯用语

音乐咖啡厅:California Dreaming加州梦想-The Mamas and the Papas

爸爸妈妈乐队（The Mamas and the Papas）成立稍晚于沙滩男孩组合(The Beach Boys)，虽然没有能像沙滩男孩那样大红大紫，但也有过一段灿烂的辉煌：他们的《加州之梦》(California Dreaming)自从1966年问世以来，可以说是传唱不衰，风靡全球；看过《重庆森林》或是《阿

发表于:2019-02-04 / 阅读(132) / 评论(0)

音乐咖啡厅

美国俚语:"弄乱,搞砸" screw up

解释： 1，弄糟，弄乱，搞砸(to mess up ) 例句： I hope I don't screw up this time. 我希望这次不会搞砸了。 Try again and don't screw it up this time. 再试一次，这次别搞砸了。 2，如果是screw up somebody 或者sc

发表于:2019-02-09 / 阅读(117) / 评论(0)

美国俚语

美国俚语:弄乱,搞砸 screw up

screw up 的常见意思及用法 1.弄糟，弄乱，搞砸(to mess up) 例句： I hope I don't screw up this time. 我希望这次不会搞砸了。 Try again and don't screw it up this time. 再试一次，这次别搞砸了。 2.如果是screw u

发表于:2019-02-09 / 阅读(111) / 评论(0)

美国俚语

辛沛沛NO-BOOK 辛沛沛口语提高版下册B Lesson 14 Screw

Lesson 14 Screw 1.You can't screw up this time. 2.You got screwed again this time? 3.I'm not for sale.Screw your money! 4.You screw with me and you'll be sorry. 5.Stop screwing off in school. 6.That crook screwed me out of ￥10. 7.The guy must have

发表于:2019-02-12 / 阅读(214) / 评论(0)

辛沛沛NO-BOOK 辛沛沛口语提高版

实用口语： Susan stays home and bakes cookies

实用口语： Susan stays home and bakes cookies LESSON 06 SUSAN STAYS HOME AND BAKES COOKIES Susan decides to cheer up her husband. Bob loves her homemade cookies. Nicole suggests she start a cookie business. Susan: Bob, I baked cookies for you. B

发表于:2019-02-18 / 阅读(80) / 评论(0)

英语口语

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

bituminous composition

brinfir