音标:[ˈspesimənz] ;
n. 样品( specimen的复数形式 ); 范例; (化验的)抽样; 某种类型的人
n. an example regarded as typical of its class
n. a bit of tissue or blood or urine that is taken for diagnostic purposes

The World Health Organization is closely monitoring the swine flu outbreaks in Mexico and the US, saying they have pandemic potential. The Centers for Disease Control and Prevention says there are now 11 confirmed cases of swine flu in the US: seven

发表于:2018-12-02 / 阅读(90) / 评论(0) 分类 2009年NPR美国国家公共电台4月

He published journals and identified the remains of a massive temple dedicated to the God Amon. As Montet's work progressed, his fame and reputation spread across the world. The more his teams excavated, the more statues and obelisks of Ramesses the

发表于:2018-12-05 / 阅读(236) / 评论(0) 分类 遗失的法老城市

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Nothing says summer like ants. Theyre at your picnics, on your porch, why theres one crawling up your leg right now. Well, now its your chance to turn the

发表于:2018-12-24 / 阅读(118) / 评论(0) 分类 Scientific American(七)月

Jeanne Baret was passionate about science, so passionate that in the 1760s the French women disguised herself as a man. She hide her true identity to accompany her lover, Bach Philibert Commerson on the first friendship to sail around the world. At t

发表于:2018-12-24 / 阅读(149) / 评论(0) 分类 Scientific American(一)月

This is Scientific American's 60-second Science. I'm Karen Hopkin. If you ever got picked on in the schoolyard, you might have wished for some sort of superpower, like unbeatable speed or maybe just the ability to completely disappear. Now scientists

发表于:2018-12-24 / 阅读(90) / 评论(0) 分类 Scientific American(五)月

(WA) I was really glad when your club invited me to share my coin collection. It's been my passion since I collected my first Lincoln cent in 1971; that's the current penny with Abraham Lincoln's image. Just a little history before I start in on my

发表于:2018-12-30 / 阅读(78) / 评论(0) 分类 托福听力短文

(woman) We've just seen two contemporary large birds that cannot fly: the emu and the ostrich. Over here is an interesting specimen from the past. This stuffed animal is not the giant penguin it appears to be, but an auk. This particular kind of auk

发表于:2018-12-30 / 阅读(79) / 评论(0) 分类 托福听力短文

Any school kid can tell you: nerds are not usually the most athletic specimens. But a new study suggests that young men who are physically fit tend to be more intelligent. The results appear in the Proceedings of the National Academy of Sciences. Ani

发表于:2019-01-08 / 阅读(80) / 评论(0) 分类 Scientific American(十二)月

This is Scientific Americans' 60-Second Science. Im Cynthia Graber. Thisll just take a minute. When is an ant like a piece of fruit? When its infected by a parasite. Researchers affiliated with the Smithsonian Tropical Research Institute discovered t

发表于:2019-01-08 / 阅读(81) / 评论(0) 分类 Scientific American(二)月

Sprigg submitted a paper to Nature, but it was turned down. 斯普里格给《自然》杂志写了一篇论文,但是没有被采用。 He read it instead at the next annual meeting of the Australian and New Zealand Association for the Advancement

发表于:2019-01-29 / 阅读(84) / 评论(0) 分类 万物简史

Those who feel themselves despised do well to look despising. 觉得自已被人藐视的人就该摆出藐视人的样子。 The smile on Bernard Marx's face was contemptuous. Every hair on the bear indeed! 伯纳马克思脸上的笑带着轻蔑。熊

发表于:2019-01-29 / 阅读(69) / 评论(0) 分类 美丽新世界

But New Bedford beats all Water Street and Wapping.In these last mentioned haunts you see only sailors; but in New Bedford,actual cannibals stand chatting at street corners;savages outright;many of whom yet carry on their bones unholy flesh.It makes

发表于:2019-01-29 / 阅读(75) / 评论(0) 分类 白鲸记

Science and technology 科学技术 Deep-sea exploration 深海探索 The age of Aquarius 1 宝瓶时代1 Inner space is almost as hard to explore as outer space 探太空难,察深海亦不易 Have you seen Cameron's latest? 卡梅隆的新作你看

发表于:2019-02-05 / 阅读(98) / 评论(0) 分类 经济学人科技系列

Let's face it: for most of us, job hunting is a means to an end. Very seldom do you meet anyone who claims to enjoy the process for itself (and when you do, they're generally such wildly extroverted people that they're fairly rare specimens of humani

发表于:2019-02-06 / 阅读(78) / 评论(0) 分类 阅读空间

Three O' Cat Is Still a Game/没有我世界照常运转Lillian Bueno Mccue/ What do I believe? What laws do I live by? There are so many answers - work, beauty, truth, love - and I hope I do live by them. 什么是我所信仰的?什么是我生活的

发表于:2019-02-07 / 阅读(83) / 评论(0) 分类 实用英语

I mention all this to explain why on a gray day in February I went to the Natural History Museum in London to meet a cheerful, vaguely rumpled, very likeable paleontologist named Richard Fortey. 我提这一切,是为了解释为什么我在阴沉沉

发表于:2019-02-17 / 阅读(119) / 评论(0) 分类 万物简史

1. 运用总分总的结构 Your listeners will understand your talk better if you organize what you say in a logical sequence or linear pattern. This means that you tell the listeners what you are going to talk about and then go through the points y

发表于:2019-02-18 / 阅读(70) / 评论(0) 分类 托福英语

Three O' Cat Is Still a Game/没有我世界照常运转Lillian Bueno Mccue/莉莲比诺麦丘What do I believe? What laws do I live by? There are so many answers - work, beauty, truth, love - and I hope I do live by them. 什么是我所信仰的?什

发表于:2019-02-20 / 阅读(87) / 评论(0) 分类 英语美文

Science and technology 科学技术 Forensic zoology 法医动物学 The elephant in the room 房间里的大象保护大象,刻不容缓! Dating ivory has just become easier. Poachers beware 确定象牙年代已变得更容易了,偷猎者们要

发表于:2019-02-24 / 阅读(237) / 评论(0) 分类 经济学人科技系列

Disputes and reorderings of much the same type can be found in all the other realms of the living, 同样的争吵,同样的重新分类,也发生在所有别的生物领域, so keeping an overall tally is not nearly as straightforward a matter

发表于:2019-03-17 / 阅读(350) / 评论(0) 分类 万物简史
学英语单词
agarospirane
algebraic fiber bundle
anterior ventral gastric vein
barium-tungsten cathode
begged exchange rate system
body
brownhill
Camellia changii
Chartering Agents
Chaussier's areola
chugach
command prompt window
cotton boll
Cozar
current month percent
curtner
Del Boy
distributing valve gasket
Dragutin
dromgoole
education
energy carrier
enterohydrocele
face painter
failed in bending
felt-tipping
four-wire measurement
geister
gem-diphosphonates
hazard inherent in substance
heavy blur
helmet-mounted
hemipyxis flaviabdominalis
hexagonal cross-ripple mark
ICE-Mch6
individual skill
information user studies
inherent defect
insequent valley
interbeings
interdigital cyst
joint holder
jungermannia lanceolata l.
ldu
Lowdham
lymphoid reticulum cell
marketing channels
marriage interview
maturing tower
maxillary buccal notch
merlady
metal waste
metrocentres
monolithic extending hybrids
multistage blowers
narrow-gauge track
Nashiji
natyam
Nuboai
nuci
off-lying sea
one-and-one
ones-with
organic structures
organic-quenched counter tube
out-storm
picture in digital form
plantar cuboscaphoid ligament
port-rope
pre - emptive strike
predatoriness
prime sheet stacking station
quality warranty clause
rautenbach
reciprocating motion
reformats
ritely
rotating stall
rtx
sheath effect
shining luster
Shorāpur
sperata
spiral deflection angle
spraying device
stand treat
stockwith
stony uterine mass
street theaters
tachometer torquemeter
teratism of testis
twist retraction
undousing
vassal
vibrapuncture
walapais
winkey
WMA,W.M.A.
xenognosin
yann
Yunnan dipelta