激光图像记录器

By Carol Pearson Washington 30 April 2008 Ten years ago, the U.S. Food and Drug Administration approved LASIK, eye surgery with a laser that enables people to see without glasses. But about five percent of LASIK procedures fail, and those patients ca

发表于:2018-12-08 / 阅读(113) / 评论(0) 分类 VOA常速英语2008年(四月)

Have you ever been waiting in line at the grocery store, 你是否曾经在杂货店里排队等候, innocently perusing the magazine rack, when a song pops into your head? 毫无念头的浏览着杂志书架时,有一首歌在你的脑海里响起

发表于:2018-12-08 / 阅读(81) / 评论(0) 分类 TED演讲教育篇

EXPLORATIONS - The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can

发表于:2018-12-16 / 阅读(97) / 评论(0) 分类 2013年VOA慢速英语(二)月

So a little unknown secret is -- 那么, 一个不为人知秘密是 -- did you see the one with the guy, he's got the Web cam? 你有没有看到一个带着网络摄像机的家伙? The poor PC guy. They're duct taping his head. They're just wrappi

发表于:2018-12-18 / 阅读(63) / 评论(0) 分类 TED演讲科技篇

[00:00.00]Lesson Ten.Hello,hello. [00:20.01]Please say these words after me. [00:24.87]computer TV VCR videotape [00:36.70]camera stereo tape recorder [00:45.84]In this lesson,we talk about technology:TV....TV? [00:53.79]Television.And VCR...VCR? [01

发表于:2018-12-25 / 阅读(102) / 评论(0) 分类 洪恩环境英语

[00:00.00] MODULE 6 MY SCHOOL [00:05.09]Unit 16 Clean The Classroom [00:10.66]New words Expressions [00:15.10]board [00:16.84]板 [00:18.57]board rubber [00:21.00]粉刷 [00:23.43]beside [00:25.51]在...旁边 [00:27.59]exercise book [00:30.01]练习本

发表于:2018-12-29 / 阅读(165) / 评论(0) 分类 广州小学三年级 (下) (学生用书)

发表于:2018-12-30 / 阅读(111) / 评论(0) 分类 自考英语(一)78讲

今天我们要学的词是upgrade. Upgrade做为动词,有升级的意思。A monitoring group says satellite imagery has shown that North Korea is making rapid upgrades to a nuclear research facility. 一个监督组织说,卫星图片显示,朝

发表于:2018-12-30 / 阅读(79) / 评论(0) 分类 英语单词荟萃

They began by analyzing the strain of farmed wheat that goes into our food and extracting its DNA. They did the same to several varieties of wild wheat. Then they compared their genetic makeup . And w

发表于:2019-01-02 / 阅读(115) / 评论(0) 分类 人、艺术、世界

Grammar Girl here. Today's topic is mixed metaphors. Politicians often provide good fodder for language commentary, and one of Barack Obama's comments during the debates has been rattling around in my head for a while now. He made a comment that some

发表于:2019-01-02 / 阅读(151) / 评论(0) 分类 英语语法 Grammar Girl

The United States Navy has demonstrated a new laser weapon operating in the Persian Gulf. The Laser Weapons System, or LaWS, is deployed on the USS Ponce transport ship. A live test firing of the weapon was recently carried out for Cable News Network

发表于:2019-01-02 / 阅读(111) / 评论(0) 分类 2017年VOA慢速英语(七)月

Show Examines Native American Imagery in US Culture An 1830 law forced thousands of American Indians from their lands in the southern United States to areas west of the Mississippi River. Expressions of support for the law are part of advertising for

发表于:2019-01-03 / 阅读(73) / 评论(0) 分类 2018年VOA慢速英语(二)月

I was born a blonde, I've always been a princess A queen of hearts, now a mother Where is the replacement for the world's front cover? From one English Rose to another I want to be the new Diana Lying on a yacht reading photo-magazines I want to b

发表于:2019-01-10 / 阅读(179) / 评论(0) 分类 音乐咖啡厅

The History of the Laser Welcome to EXPLORATIONS in VOA Special English. Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one of the best examples of how technology can go from the sci

发表于:2019-01-12 / 阅读(155) / 评论(0) 分类 2013年VOA慢速英语(五)月

EXPLORATIONS - The Laser: Futuristic Science Found at Your Local Store MARIO RITTER: Welcome to EXPLORATIONS in VOA Special English.Im Mario Ritter. This week, we tell about one of the most recognizable objects in science fiction the laser. It is one

发表于:2019-01-12 / 阅读(124) / 评论(0) 分类 2012年VOA慢速英语(一)月

释义: Asking someone to be quiet or to shut up.让某人安静或者别出声 来源: The origins for this expression are unclear. 这个词组的来源不是很清楚。It's not really known why a sock is being used, or what the 'it' in the phra

发表于:2019-01-17 / 阅读(93) / 评论(0) 分类 英语俚语天天说

This is why I am so excited to share with you all today 因此我是那么激动,迫不及待想要与你共享, that we will begin the 2016 TED Prize platform in Latin America, more specifically Peru. 我们将在拉丁美洲开展2016TED奖金平

发表于:2019-01-18 / 阅读(115) / 评论(0) 分类 TED演讲科学篇

By Paul Sisco Washington 14 November 2007 At the McDonald Observatory in western Texas, a unique space program has been quietly underway for more than 30 years. It is called the Lunar Laser Ranging Program. VOA's Paul Sisco has more. Research scienti

发表于:2019-01-31 / 阅读(134) / 评论(0) 分类 VOA常速英语2007年(十一月)

The Art of Public SpeakingUsing LanguageHave you ever played Pictionary1? The point of the game is to draw words so people watching you can guess them. Some words are easy ?nbsp;house, bird, and television, for instance. Even people without artistic

发表于:2019-02-07 / 阅读(145) / 评论(0) 分类 实用英语

BEIJING, May 23 (Xinhua) -- The Ziyuan III satellite, launched on Jan. 9 to produce high-resolution imagery for civilian use, has sent back visual data covering 45.79 million square km of the globe as of May 18, according to an announcement on Wednes

发表于:2019-02-08 / 阅读(141) / 评论(0) 分类 英语新闻
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