音标:[maɪˈgreɪʃənz] ;
n. 迁移, 移居( migration的复数形式 )
n. the movement of persons from one country or locality to another
n. a group of people migrating together (especially in some given time period)
n. (chemistry) the nonrandom movement of an atom or radical from one place to another within a molecule

This period is known as the time of the Migrations. 成千上万的人是否被打死,这并不重要,而成千上万的人却随后跟上。这个时期叫民族大迁徙时期。 It was the storm that swept up the Roman empire and whirled it in

发表于:2018-12-07 / 阅读(64) / 评论(0) 分类 世界小史

So, enough scientists in other disciplines are really asking people to help, and they're doing a good job of it. 足够多的科学家在其它领域正寻求大家帮忙,而且大伙也干的不错。 For instance, there's eBird, where amateur bir

发表于:2018-12-19 / 阅读(49) / 评论(0) 分类 TED演讲教育篇

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? We live in a nice neighborhood. Of the galaxy, that is. The sun is about halfway toward the outer edge of the Milky Way. But the sun may have migrated vast distances t

发表于:2018-12-24 / 阅读(90) / 评论(0) 分类 Scientific American(九)月

DNA Points to Multiple Migrations into the Americas 美洲多次殖民迁移之谜 For more than ten thousand years, Alaska Native and Canadian First Nations people have lived along the Northwest coast of North America. Now, ancient remains have prov

发表于:2018-12-24 / 阅读(81) / 评论(0) 分类 2017年Scientific American(六)月

5.By 1996 foreign-born immigrations who had arrived before 1970 had a home ownership rate of 75.6 percent, higher than the 69.8 percent rate among native-born Americans. 【分析】复合句。句子主干为 foreign-born immigrations...had a home o

发表于:2018-12-30 / 阅读(54) / 评论(0) 分类 考研英语长难句讲解

Dear March - Come in - How glad I am - I hoped for you before - Put down your Hat - You must have walked - How out of Breath you are - Dear March, Come right up the stairs with me - I have so much to tell - I got your Letter, and the Birds - The Mapl

发表于:2019-01-01 / 阅读(63) / 评论(0) 分类 英语散文阅读

Environmental Refugees Could Top 50 Million by 2010 到2010年环境移民可能高达五千万 By 2010 the world may need to cope with as many as 50 million people who have fled their homeland - not

发表于:2019-01-03 / 阅读(98) / 评论(0) 分类 VOA2005(下)--社会新闻点评

This is Scientific American's 60-Second Science, I am Karen Hopkin. This'll just take a minute. Biologists, traditionally track migrations by tagging animals with devices that allow their movements to be monitored. But Homo sapiens can't be fitted wi

发表于:2019-01-08 / 阅读(94) / 评论(0) 分类 Scientific American(六)月

AS IT IS 2015-01-12 International Action Urged to Stop Migrant 'Ghost Ships' 国际行动呼吁停止移民幽灵船 In the first week of January, more than 1,000 migrants had to be rescued in the Mediterranean Sea. Many were refugees from Syria. The

发表于:2019-01-12 / 阅读(53) / 评论(0) 分类 2015年VOA慢速英语(一)月

Females travel in family groups, sometimes leading their young on yearly wanderings of up to 20,000 miles. Each day, they gather to reaffirm their bonds. They seem to crave physical contact. Finally, the mothers disperse to feed in shifts. They leave

发表于:2019-01-22 / 阅读(65) / 评论(0) 分类 自然百科2010年

Only the fit and the lucky will inherit the relay race of their lives. It is a race that is increasingly endangered like many of the world's great migrations. Climate change disrupts weather patterns and exploding human populations encroach on their

发表于:2019-01-22 / 阅读(69) / 评论(0) 分类 自然百科2010年

They're born to move, to move or die, forging ahead against terrifying odds, navigating the first of millions of miles, spanning continents on fledgling wings, clattering ever onwards. Right now, our planet is on the march, on the wing, on the run, a

发表于:2019-01-22 / 阅读(72) / 评论(0) 分类 自然百科2010年

The merciless yellow crazy ants take a terrible toll. But by sheer force of numbers and the inexorable will of their genes, they prevail. That is the fierce logic of migrations. But what is logical for the many can be madness for the few. At the Mara

发表于:2019-01-22 / 阅读(74) / 评论(0) 分类 自然百科2010年

Dear March - Come in - How glad I am - I hoped for you before - Put down your Hat - You must have walked - How out of Breath you are - Dear March, Come right up the stairs with me - I have so much to tell - I got your Letter, and the Birds - The Mapl

发表于:2019-01-30 / 阅读(48) / 评论(0) 分类 双语有声阅读

AGRICULTURE REPORT - Locusts in North Africa By Mario Ritter Broadcast: Tuesday, August 03, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Crop damage in Mauritania. An inva

发表于:2019-01-30 / 阅读(44) / 评论(0) 分类 农业与发展

No, the progress of the last six hundred years would not have been possible without the existence of cities. 不过,如果不是因为城市的存在,过去六百年来的进步将是完全不可能的。 I shall, therefore, have to make this cha

发表于:2019-02-13 / 阅读(59) / 评论(0) 分类 美国学生人类历史

You have seen how a few artisans(butchers and bakers and an occasional candle-stick maker) 后来出现了一些手工匠人,屠夫呀、面包师傅呀、制蜡烛工人呀, came to live near the castle to tend to the wants of their masters and

发表于:2019-02-13 / 阅读(57) / 评论(0) 分类 美国学生人类历史

Soon certain energetic merchants discovered that the goods which they had always imported from afar could be made at home. 不久,某些精明能干的商人开始意识到,那些一直从远方采购来的商品其实也可以就近生产的。

发表于:2019-02-13 / 阅读(51) / 评论(0) 分类 美国学生人类历史

Chapter 31 Feudalism 第三十一章 封建制度 How central Europe, attacked from sides, become an armed camp 欧洲中部受到来自三个方向的敌人威胁,变成了地道的大兵营。 and why Europe would have perished without those prof

发表于:2019-02-21 / 阅读(56) / 评论(0) 分类 美国学生人类历史

He looked after the dikes so that the countryside should not be flooded 他还担当着照看水坝的职责,以免四周的乡野受洪水之患 (just as the first noblemen had done in the valley of the Nile four thousand years before). (就像4

发表于:2019-02-21 / 阅读(53) / 评论(0) 分类 美国学生人类历史
学英语单词
absolute catalog
absolute speed drop
Amqui
Apium graveolens L. var. rapaceum DC.
aqmds
auxiliary traction machine
baksheeshed
bear the bell
berloque
betake
breathing exercise
by stealth
charge-transfer device
chronic recurrent appendicitis
circular bore
combustibility test
common seals
comptrollers general
computer-aided manufacturing system
Cuxwold
cyclindole
dactylium alpiniae
daughtery
decayablest
digital character generator
Dmitrovskiy Rayon
drifting automatic radio-meteorological system
drum type shears
Eblis
elastic work schedule system
equilux
eristalinus lugens
fade-in fade-out device
free-ports
full-storage system
genus coragypss
genus corallorhizas
genus phyllocladuss
give them a hand
Graptemys
grid lines device
hexosemonophosphate shunt
high definition camera
Hyades Group
hydrodynamic moment
imbabura
inconstancy
inverted vee
irregular rondo
lacker
Lahemaarahvuspark
Liparis kwangtungensis
little-endian
marketing association
maximum likelihood decision rule
mcclatchy
meat consumption
millimho
minimum admissible dimension
molk
Māsimpur
novacek
open and closed shelter deck ship
operational failure
overcultures
Ponkuto-san
raise doubts
response prevention
rolling characteristic
rubra polycythemia
salmiana
scanlated
sechelle
semiautos
seventeen-year-old
silver storm
sinuses reuniens
solar power tower
split off from sb
stir a bath
stirring up
storytime
stranguria due to disturbance of qi
tetramethylthiuram disulfide
top echelon
toxamin
Transcaucasia
transfer fund
truxene
ultramarine blue
unclaimable
univariate optimum interpolation
unsoaped
urology in childhood
uterus incadiformis
vacillation
Vagay
valve lightening arrester
vasotropic
vibration screen
virtual ampere-turn
wind-borne load