血浆冷冻干燥机

Freezing Food

By Gary Garriott Broadcast: August 25, 2003 This is Steve Ember with the VOA Special English Development Report. Freezing can keep food fresh and safe to eat. Freezing lowers the food temperature belo

发表于:2018-11-27 / 阅读(532) / 评论(0)

VOA2003（下）-发展与科学

太阳科普第8期

Now the speed of light is a very,very big number. 光速是个很大的数字 So if we just take a small amount of mass, 所以只要一点点质量 you get a huge amount of energy. 就含有大量能量 And that's the energy which actually powers ou

发表于:2018-12-07 / 阅读(187) / 评论(0)

太阳科普

爆笑英语口语第79期:谈论天气

Language Points 1. I feel cold. 2. It's ice cold 3. Is ice cold? 4. freezing cold. 5. stone cold 6. cold spell

发表于:2018-12-26 / 阅读(106) / 评论(0)

爆笑英语口语

英语听力：探索发现 2013-01-13 冰河新新州 Ice Age Oasis—14

Some of this ice age dung was found beneath the skull in the Aucilla. The dung contained plant remains that tell us what the mastodon was browsing on 13,000 years ago or morea mixture of trees and grasses. This suggests that ice age Florida was drier

发表于:2018-12-27 / 阅读(122) / 评论(0)

探索与发现2013年

DEVELOPMENT REPORT - Freezing Food

DEVELOPMENT REPORT - Freezing Food By Gary Garriott Broadcast: Monday, December 27, 2004 I'm Gwen Outen with the VOA Special English Development Report. Freezing can keep food fresh and safe to eat. F

发表于:2019-01-02 / 阅读(135) / 评论(0)

农业与发展

SSS 2008-07-10

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? After a bad day at the office, were more likely to flip on a nature channel than find a flower-filled meadow or sunny beach to lower our stress. But if you cant head

发表于:2019-01-08 / 阅读(140) / 评论(0)

Scientific American(七)月

形容天气寒冷的英语口语

冬至过后，各地气候都将进入一个最寒冷的阶段，也就是人们常说的进九。这两天出门大家可要记得要添衣保暖以免感冒哦。今天我们来学习一下有关天气寒冷的地道说法吧。 1. It's freezing/c

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英语日常口语

英文药品说明书的写法（十一）

上述10项是绝大多数英文药品说明书中必备项目，但是许多说明书中还常常出现其他一些项目。例如： 1、特点（Characteristics） 2、性质（Properties） 3、药代动力学（Phamacokinetics） 4、用药过量（

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医学英语

英文药品说明书的写法（二）

第二节性状许多药品说明书的第一项是Description（性状），其原意是叙述、描写，在药品说明书及药典中一般都译为性状，其内容主要是介绍外观、理化性质、组成成分、结构、特征等。这一

发表于:2019-01-08 / 阅读(190) / 评论(0)

医学英语

美联社新闻一分钟 AP 2014-04-03

1. The Mayor of the Albuquerque, New Mexico says a 10-hour protest turned into a mayhem as police clashed with hundreds of protestors. The demonstrators are protesting recent police shootings there. 2. Washington State authorities say they expect dri

发表于:2019-01-11 / 阅读(169) / 评论(0)

美联社新闻一分钟2014(四)月

【英语时差8,16】下雨天，跑还是走？这是个问题。

Getting Out Of The Rain Have you ever dashed across a parking lot in a sudden rainstorm? You might think that youll stay drier by running as fast as you can-but wait-the faster you run, the more drops youll run into horizontally, soaking your front.

发表于:2019-01-22 / 阅读(142) / 评论(0)

英语时差8，16

生活大爆炸第三季第九集_3

好吧 Well... -那我该给克瑞普克下毒 -不 - I suppose I could poison Kripke. - No! 不这其实很简单 No. It's a simple matter. 有那么几种有毒化学物 There are several toxic chemicals 尸检是查不出来的 that'd be untracea

发表于:2019-01-28 / 阅读(149) / 评论(0)

生活大爆炸第三季

2007年VOA标准英语-Freezing Rain, High Winds Cause Havoc in US Hea

By Greg Flakus Houston 15 January 2007 Wintry weather conditions are causing widespread disruptions in the Great Plains states and as far south as Texas and Louisiana. Hundreds of thousands of people are without electrical power and icy roads have c

发表于:2019-02-03 / 阅读(160) / 评论(0)

2007年VOA标准英语（一月）

China faces severe plasma shortage: health minister

BEIJING, Dec. 11 (Xinhua) -- China is faced with severe challenges in collecting enough blood plasma to produce medicines, Health Minister Chen Zhu said Sunday. Chen called on the public to join blood donation after donating blood plasma at the Beiji

发表于:2019-02-07 / 阅读(135) / 评论(0)

英语新闻

发送电子邮件也会产生碳足迹么？

You might not realise it, but sending even a short email has an impact on the environment. 你可能没有意识到，即使是发送一封小小的邮件也会对环境产生影响。 Scientists estimate that an email adds about four grams (0.14 oun

发表于:2019-02-08 / 阅读(171) / 评论(0)

阅读空间

TED演讲:人生交叉点(7)

One of my favorite examples of liminal excellence comes from the late Dr. Claudia Alexander, 我最欣赏的一位具有交叉才能的榜样是已故的克劳迪娅亚历山大博士， a black woman plasma physicist, who passed away this past July

发表于:2019-02-13 / 阅读(138) / 评论(0)

TED演讲国际问题篇

下雨是跑淋的雨多还是走淋的雨多?

【英文原文】 Have you ever dashed across a parking lot in a sudden rainstorm? You might think that youll stay drier by running as fast as you can.but wait!The faster you run, the more drops youll run into horizontally, soaking your front. You w

发表于:2019-02-16 / 阅读(110) / 评论(0)

英语听力广播—Listening

Lesson 44-1 Home Appliances 家用电器

Listen to the statements and check the correct answers. 1.Is sweeping out the tiny dust bothering you a lot? From now on if you have this machine, doing the housework will become a very easy job. This is a portable vacuum cleaner. lt's light and wire

发表于:2019-02-17 / 阅读(117) / 评论(0)

英语听力练习题

Chinese health minister donates plasma

CHENGDU, May 5 (Xinhua) -- Chinese Health Minister Chen Zhu donated plasma on Saturday in Chengdu, capital of southwest China's Sichuan Province, and called on health workers to take the lead in blood donation to ease the country's blood supply short

发表于:2019-02-18 / 阅读(139) / 评论(0)

英语新闻

“冷死了”怎么说？

发表于:2019-03-02 / 阅读(137) / 评论(0)

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