音标:[pɜ:tə'beɪtə] ;
扰动器
n. A perturber.

Keep Rolling Luggage Upright With Physics物理学帮你稳住拉杆箱 If you've ever pulled a rolling suitcase through the airport, chances are you've also been annoyed by this common occurrence: the suitcase starts rocking back and forth on each w

发表于:2018-12-24 / 阅读(1452) / 评论(0) 分类 2017年Scientific American(六)月

avaricious, [ .və'riʃəs ] adj 贪财的=greedy 【记】见avarice 【类】stoic:perturb=avaricious:satisfy镇定的不易被干扰=贪财的不易被满足 【反】contented(adj 满足的)

发表于:2018-12-30 / 阅读(441) / 评论(0) 分类 不择手段背单词

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! Thank you!

发表于:2018-12-30 / 阅读(402) / 评论(0) 分类 单词解析速记

1. perforate /ˈpɜ:fəˌreɪt/ -- (literally, bore through) make a hole or holes through; pierce; puncture The physician said the tack had gone through Betty's shoe and sock without perforating her skin. 医生说大头针穿过了贝蒂的鞋袜,但

发表于:2018-12-30 / 阅读(450) / 评论(0) 分类 突破英文词汇

By Mona Ghuneim New York 27 March 2008 Astronomers have captured an image that suggests evidence of a planet in the early stages of formation. From VOA's New York Bureau, Mona Ghuneim reports on this discovery that has opened a new window onto our en

发表于:2019-01-10 / 阅读(575) / 评论(0) 分类 VOA标准英语2008年(三月)

Technology Report - WHO Finding Adds to Debate Over Mobile Phones, Brain Cancer 世卫组织加大手机致脑癌的讨论 This is the VOA Special English Technology Report. 这里是美国之音慢速英语科技报道。 The World Health Organizati

发表于:2019-01-12 / 阅读(505) / 评论(0) 分类 2011年VOA慢速英语(六)月

Plants Weaken Without Insects Bugging Them Evolutionary pressures The new study examines how insects and plants are still co-evolving. Anurag Agrawal studies evolution in real-time. The Cornell University professor of ecology and evolutionary biology

发表于:2019-01-14 / 阅读(514) / 评论(0) 分类 VOA标准英语2012年(十月)
学英语单词
achromatopias
achromophil
analog bus
audio-discs
backing deal
be out for a duck
bottom-dump
Brussel sprout
Bull, John
bull-pup
bythocythere marginata
C-shaped frame
C/MIN
cardiac rhythm
cascade solidity
Chang-Woo
changing world
chromium plate
Cindmet
coaling bag
coefficient of induction
Colonia General Rivera
conviction politics
countersigner
crossheads
dark mark
delay correction
double hypergeometric distribution
duodecemvirate
dupiaza
dynamic alteration
e-blast
follow up clerk
fuliginosities
genus Galleria
geschke
Hertz, Heinrich Rudolf
hyperacid
industrial health
introspectable
isolated-phase bus
job swapping memory
kalla
kormakur
Kushva
lipoxeny
Lungler
magnetostriction oscillator
magnetostrictive relay
mailstore
man of the match
mashugana
mckeon
measuring cup filling machine
Meditel
meriem
metal strip oscillator
modern maniac
monthlies
nitrogen fixing bacteria
nubby
nuclear phase
oodles of money
osteoma sarcomatosum
pasture with foragegrass
poetamine
portable slotting machine
postcolumn derivatization
proofing
Pseudacris
pygostrangalia kurodai
resource rich
rhombohedral close packing
rmh
Rubus arachnoideus
secondary wire crossfiring
self torque
semiconductor dopant extraction
side-cut distillate
solid epitaxy
spiculums
stampers
strain control
Strzegocin
supercritical reactor
tachygraph
tag ends
take your leave
Tomptokan
top loading
total ionic strength adjustment buffer
trophoblastic disc
unassayed
Uyana
vasum turbinellum
Vatnafjöll
view away
view models
volt-milliampere meter
volumetric loss
well distributed
Westminster Abbey