[化] 同位素峰

1. Peak people: 人口顶峰。这个词组就是指世界人口达到最高值的时期,之后的人口数量会因为出生率的降低或全球能源、食物、水资源匮乏而呈稳定下降的趋势。据说我们已经 reached peak people,

发表于:2018-12-18 / 阅读(132) / 评论(0) 分类 实用英语

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The Earths crust is old. Billions of years old. So old that its nearly impossible to imagine. And now scientists have discovered what may be the oldest

发表于:2018-12-24 / 阅读(141) / 评论(0) 分类 Scientific American(九)月

[00:00.00]Module 7 TRAVELLING TO HONG KONG [00:06.62]UNIT 2 The place at the top of the mountain [00:10.74]is called the Peak. [00:12.85]1 Listen and read. [00:16.00]Today was a long day but it was very exciting. [00:19.54]This morning, we went to Ho

发表于:2018-12-29 / 阅读(146) / 评论(0) 分类 外研社新标准初中英语九年级

What's another meaning for peak? Helen: This is Real English from BBC Learning English. I'm Helen. Zo: 欢迎收听今天的地道英语,我是刘佳。 Helen: Today we're going to look at words and phrases that have recently become part of the English language. Z

发表于:2019-01-02 / 阅读(154) / 评论(0) 分类 地道英语在线听

Wasn't I enough Didn't I amount to you I don't blame you for the love That I lost to her It will take time A lot of heartache too But I was in love I thought you were too No one compares if I'm honest I've beaten myself blue I wish you could've been

发表于:2019-01-03 / 阅读(182) / 评论(0) 分类 音乐咖啡厅

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Theres definitely methane on Marsand there are seasonal variations of how much is being released into the thin Martian atmosphere. Which means that Mar

发表于:2019-01-08 / 阅读(142) / 评论(0) 分类 Scientific American(一)月

What does an 800-pound gorilla eat? If you said: anything it wants, youre not thinking like a scientist. A scientist would say, Let me analyze the isotopic composition of its excreta and Ill get back to you. Because a new study shows that the ratio o

发表于:2019-01-08 / 阅读(130) / 评论(0) 分类 Scientific American(十二)月

By George Dwyer Washington, DC 01 May 2006 watch World Oil Peak report Rising oil prices have many consumers and business people wondering how long it will be before the price of a barrel of oil or a

发表于:2019-01-11 / 阅读(225) / 评论(0) 分类 2006年VOA标准英语(五月)

Scientists Closer to Solving Plain of Jars Mystery A new group of human remains has been uncovered on the Plain of Jars in Laos. They are believed to date back to the Iron Age, some 2,500 years ago. The Plain of Jars is in the central Lao province of

发表于:2019-01-12 / 阅读(120) / 评论(0) 分类 2016年VOA慢速英语(三)月

一./i: /和/i/的发音区别 这两个音不仅仅存在长短的差别,更重要的还有音调高低的差别。/i: /和/i/虽是一长一短的一对,但它们的发音效果却不一样,发/i/音时,音不仅要短,舌面还要离开上

发表于:2019-01-17 / 阅读(492) / 评论(0) 分类 实用英语

国庆长假一直是旅游旺季,热门景区都是人山人海;加上高速公路免收通行费,许多有车一族选择自驾游,在高速上打起了羽毛球。这个国庆,要么在景区哭,要么在家里笑,你选哪一样? 国

发表于:2019-01-22 / 阅读(121) / 评论(0) 分类 美国文化脱口秀

The ups and downs of life may seem to have no predictable plan.But scientists now know there are very definite patterns that almost all people share.Even if youve passed some of your prime,you still have other prime years to experience in the future.

发表于:2019-02-01 / 阅读(116) / 评论(0) 分类 实用英语

Woohoo You Know You Really Wanna (HEY) , Wanna Tasty My , You Know You Wanna Get a Peak Wanna See My , You Wanna Put Your Lips Where Hips Are , Kiss On My , All Over My , All The Boys Think Its Cake When They Taste My , You Dont Even need A Plate , j

发表于:2019-02-03 / 阅读(148) / 评论(0) 分类 好听的英文歌曲

人生的起伏似乎没有可预知的模式,但是科学家现在发现有一些模式相当明确,绝大多数人都不例外。即使你度过了一些最佳时期,你仍然会在将来经历另外几个最佳时期。某些最佳期时期似

发表于:2019-02-05 / 阅读(115) / 评论(0) 分类 英语美文

跟朋友发短信或者在网上聊天的时候,总是会看到lol,ttul等让人摸不着头脑的一些缩略语,想直接问人家吧,又怕被人家笑话。到网上一搜才发现,原来这些都属于textese(短信文),(lol是

发表于:2019-02-06 / 阅读(113) / 评论(0) 分类 实用英语

Every mountain has a peak What is the secret ingredient of tough people that enables them to succeed? Why do they survive the tough times when others are overcome by them? Why do they win when others lose? Why do they soar when others sink? The answe

发表于:2019-02-07 / 阅读(130) / 评论(0) 分类 阅读空间

北京出现连续高温天气,13日16时33分,北京地区电网最大负荷达到1831.2万千瓦,突破了2013年的历史最大纪录1776万千瓦,增长3.1%。 请看相关报道: Peak load in Beijing hit 18.3 million kilowatts (kW) a

发表于:2019-02-13 / 阅读(133) / 评论(0) 分类 英文语法词汇

Health official says the flu season that started in China's northern provinces in December is expected to peak with infections in the next few weeks. However, Ministry of Health spokesman Deng Haihua said the expected peak infection levels will not r

发表于:2019-02-14 / 阅读(119) / 评论(0) 分类 英闻天下

Compston's machine allowed such rocks to be dated with unparalleled precision. 康普斯森的仪器能以无与伦比的精确度测定这些岩石的年代。 The prototype SHRIMP was built and machined in the Earth Science department's own worksho

发表于:2019-02-17 / 阅读(133) / 评论(0) 分类 万物简史

China braces for another travel peak BEIJING, Oct. 6 (Xinhua) -- China's transport networks are expected to experience another travel peak Saturday and Sunday, when millions of holiday-makers return as the week-long holiday draws to an end. Trains ar

发表于:2019-02-17 / 阅读(145) / 评论(0) 分类 英语新闻
学英语单词
a hundred and one ways
a-c circuit breaker
a-class
aberrs
ag(e)ing time
amalgamated society of engineers
aotenesis
Aricanduva
audiovisual
bailecito (argentina)
Bhilwāl
blakeley
Bradenton
Cerdedo
Clark, Lake
clock speeds
closing the bank account
come to a grinding halt
Corraun Pen.
cottom
data-item synthesis
decorated flutings
deshi
DICERATIIDAE
displayscreen
dissemble
dosulepin
double-blind procedure
electric induction phenomenon
extranormal
facsimile signal simulator
farias
feedback transfer
fresh-roasted
gleyic luvisol
good opportunity
green vegetables
hedgehop
hematopoietic cord
Heslington
high-speed facsimile
holonovel
hopper discharger
implicit enumeration method
instructorish
international workingmen's association
intervention theory
Kearney
KMP algorithm
kubursi
labyrinthine vestibule
laminoid
law of contingent reinforcement
lead-acids
licoflavonol
marginal lobe
mild steel channel
modernising
multilobal
mycetina similis
nkosi
non equilibrium ionization
on the blower
overflow velocity
phase-modulation communication system
Phenolsulphonphthaiein
phereses
phyllosticta gossypii
picture to oneself
postdictive validity
precious garnet
preloading
private lender
pseudo adiabatic process
quadrature-axis synchronous internal voltage
reduction by intermaxillary ela tic traction
regulation game
resonated
retrosinus
rigidifier
scoring system
sds-s
self deceive
showie
shunted condenser
sink one's own interests
sorcha
sounding rocket
spinigerum
spontaneous hemothorax
succinge
sweep gear
tapioca adjuvant
Tax-evaders
texas armadillos
ultrafilter space
ultrareactionary
under his belt
under-escheator
urn(urna)
yolk protein
ziyangs