甲基丙烯酸2-羟乙酯

AS IT IS 2014-05-25 Scientists Search for New Ways to Stop Mosquitoes 科学家们寻找新的方法来对付蚊子 The sound of a mosquito can mean trouble in many parts of the world. The bite of a mosquito can be deadly. Today, we will hear about s

发表于:2018-12-08 / 阅读(133) / 评论(0) 分类 2014年VOA慢速英语(五)月

VOICE ONE: I'm Steve Ember. VOICE TWO: Colorful fish at Danger Reef And I'm Barbara Klein with EXPLORATIONS in VOA Special English. Today we explore the clear blue waters around the islands of the Bahamas to learn about the exciting sport of scuba d

发表于:2018-12-15 / 阅读(107) / 评论(0) 分类 VOA慢速英语2008年(八)月

This is the VOA Special English Agriculture Report. Thanksgiving Day is America's version of a harvest festival. The holiday is celebrated on the fourth Thursday in November. This Thursday, millions of Americans will join family and friends to give t

发表于:2018-12-16 / 阅读(145) / 评论(0) 分类 2010年VOA慢速英语(十一)月

美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 630,000 people died of malaria-related

发表于:2018-12-19 / 阅读(89) / 评论(0) 分类 VOA双语新闻 2014年1月

Humulone 律草酮 Huperzine Serrate P.E 千层塔提取物 Hydroginkgolic acid 氢化白果酸 Hydroginkgolinic acid 氢化白果亚酸 p-Hydroxyacetophenone 对羟基苯乙酮 p-Hydroxybenzylalcohol

发表于:2019-01-03 / 阅读(88) / 评论(0) 分类 医务英语

By Delia Robertson Johannesburg 01 November 2006 Former South African president, P.W. Botha, has died at his home in Wilderness on the country's southern coast. He was 90. VOA's Delia Robertson has this profile on the man who introduced some reforms

发表于:2019-01-12 / 阅读(157) / 评论(0) 分类 2006年VOA标准英语(十一月)

Researchers Say Malaria Drug Could Also Treat Cancer Scientists know that human cancer cells grow by getting energy from adjacent tumors, where cells have begun to self-destruct. The spread of cancer is accelerated by the death of these cells. This p

发表于:2019-01-13 / 阅读(117) / 评论(0) 分类 VOA标准英语2012年(三月)

Middle class red shirt supporters Uraiwan Suwannasang, left, and Teerapan Suwannasang, in front of photos of their children at home in Ban Pheu, 17 May 2010 Many of the so-called Red-Shirt protesters who have spent more than two months demonstrating

发表于:2019-01-13 / 阅读(90) / 评论(0) 分类 VOA标准英语2010年(五)月

Promising Mosquito Repellent Announced美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 6

发表于:2019-01-14 / 阅读(86) / 评论(0) 分类 VOA标准英语2014年(一月)

A: What can I do for you today? B: Doctor, I have the worst toothache! A: How long have you had this pain? B: For about a week or so, but its gotten really bad in the last couple of days. A: Did you do anything that might have aggravated your tooth?

发表于:2019-01-15 / 阅读(154) / 评论(0) 分类 英语情景对话-健康

A: So what brings you to my office today? B: My tooth is killing me! A: How long has your tooth been bothering you? B: It just started hurting me last night. A: Have you injured your tooth in any way? B: I think one of my fillings might be coming loo

发表于:2019-01-15 / 阅读(111) / 评论(0) 分类 英语情景对话-健康

A: How have you been doing? B: I cant sleep or eat. I have a really bad pain in my tooth! A: How long have you had this toothache? B: It bothers me off and on, but its gotten much worse these past few weeks. A: Is there anything that youve done to yo

发表于:2019-01-15 / 阅读(99) / 评论(0) 分类 英语情景对话-健康

One Police stops on police vehicle outside one Victoria's Bar. After the preparation, as necessary arrests?, this liquor drive slightly mixes. Suddenly he sees to have a young people shakely goes out from bar, spend the many figures only then finds

发表于:2019-01-17 / 阅读(65) / 评论(0) 分类 白领英语晨读

In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月,俄罗斯最大的大学图书馆之一发生了火灾

发表于:2019-02-02 / 阅读(86) / 评论(0) 分类 英语新闻

What babies know fascinates doctors, researchers and parents. With technology that can measure brain waves and other indicators, what researchers are finding is that babies know more than we suspect. What do they know and when do they know it? Such q

发表于:2019-02-07 / 阅读(63) / 评论(0) 分类 VOA标准英语2010年(五)月

On its website, a history of the company makes no mention of leador indeed of Thomas Midgleybut simply refers to the original product as containing a certain combination of chemicals. 在它的网站上,公司的历史没有提及铅──也没有提

发表于:2019-02-17 / 阅读(91) / 评论(0) 分类 万物简史

By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo

发表于:2019-02-17 / 阅读(107) / 评论(0) 分类 万物简史

Lead is a neurotoxin. Get too much of it and you can irreparably damage the brain and central nervous system. Among the many symptoms associated with overexposure are blindness, insomnia, kidney failure, hearing loss, cancer, palsies, and convulsions

发表于:2019-02-17 / 阅读(97) / 评论(0) 分类 万物简史

If you were going to a restaurant and wanted a healthier option, 如果你去饭店,你想吃得健康一点, which would you choose, grilled or fried chicken? 你会选择哪种食品呢,烤鸡还是炸鸡? Now most people would answer grill

发表于:2019-02-21 / 阅读(119) / 评论(0) 分类 TED演讲教育篇
学英语单词
a drone
AC reactor
acoric acid
air through tunnel
aklavinone
Allatoona Lake
ashplants
atlet
AutoCorrect
bebopped
body transport
boiler fuel oil tank
brickler
building loan
business liability
capstan shaft
Chamaenerion angustifolium
claviole
compressed liquid
computergenerated
conventional budding
cycloptic
cyerts
debugging subcommand
deskbands
dichasial
disengagement yoke
Distributed Resource Scheduler
double lancet window
ectosymbionts
effective current
egeea
electrically conductive glue
electrooptical modulation transfer functions
equipment-cost
ethylnaphthalene-polyoxyethyleneether-alcohol
etilon
first touch
furance month
Gauss position
gorris
guaranty company
hang-down
hornily
hydranthos
hypertrophic lymphoma
individual burner flame detection
inequitable
intra-family
invertases
Kölln-Reisiek
labelled graph
lajolla
learned man
lef filter
ligamenta jugale
method of sample enlargement
misdetect
moral density
multi-state
near limit
nel
neophilias
Newton first law
oar neck
Piper laetispicum
polios
portfolio entry
Prelog
prisoner's statement
pseudo-noise sequence
pumped-storage project
reaction of animals
repaster
saw-grasses
scraper equipment
server sprawl
short-circuited armature coil
single-address message
space symmetry operation
specified time relay
speedway racing
spin wave side band
spirt-net
sporicidin
stock exchange automated quotations
stone mortar with pestle
thallium(iii) perchlorate
thulium bromide
tree-top
tubular furnace
undogmatical
uneffective
urine albumin after exercise
utility factor
vegecultural
vegetation region
Vieste
water pump outlet pipe
wetty
White R.
wing unit