苯基丙酮

Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s

发表于:2018-12-18 / 阅读(148) / 评论(0) 分类 万物简史

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(120) / 评论(0) 分类 Scientific American(三)月

Fun Fact: Alligators Can Regrow Teeth 有趣的事实:短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal

发表于:2018-12-28 / 阅读(94) / 评论(0) 分类 初学者听力文摘精选

its time again for the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive always been fascinated by volcanoes. So I was wondering: How well can scientists predict when and where a volcano will erupt? Intersting question. Th

发表于:2018-12-31 / 阅读(94) / 评论(0) 分类 英语听力文摘 English Digest

A:Eric,how long will you be in china? Eric,.你要在中国呆多久? B:I don't know,Well my contract here is one year and I don't know what I should do after that.Maybe going around for a while. 不

发表于:2019-01-03 / 阅读(124) / 评论(0) 分类 英语抢先学

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

发表于:2019-01-08 / 阅读(137) / 评论(0) 分类 Scientific American(四)月

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

发表于:2019-01-08 / 阅读(140) / 评论(0) 分类 Scientific American(十一)月

SYDNEY: All molecules are not created equal. Some have saved billions of lives, wreaked environmental havoc or made the world a more colorful place. Here's our selection of those that have changed the course of human history。 发自悉尼:分子并

发表于:2019-01-08 / 阅读(105) / 评论(0) 分类 实用英语

英文歌词: Well I told you once and I told you twice But ya never listen to my advice You don't try very hard to please me With what you know it should be easy Well this could be the last time This could be the last time Maybe the last time I don't

发表于:2019-01-10 / 阅读(106) / 评论(0) 分类 英文摇滚歌曲

A billion people died on the news tonight But not so many cried at the terrible sight Well mama said It's just make believe You can't believe everything you see So baby close your eyes to the lullabies On the news tonight Who's the one to decide that

发表于:2019-01-11 / 阅读(122) / 评论(0) 分类 美国乡村音乐

Aishwarya Rai Bachchan is one of Indias best known and best loved actresses. She was born in 1973 and was a very bright pupil at school. She worked part-time as a model while studying architecture. She planned to be an architect. Things changed all o

发表于:2019-01-11 / 阅读(112) / 评论(0) 分类 世界名人简介

[00:00.00] MODULE 9 Mistakes Unit 1 What's the matter? [00:10.95]Activity 1.Listen and point.Sam:What's the matter? [00:26.72]Why are you laughing?Daming:We're going to have a baseball team. [00:31.06]Sam:So why is that funny?Why are you laughing? [0

发表于:2019-01-15 / 阅读(259) / 评论(0) 分类 北外版新标准小学英语第六册(三年级起点)

The Blue Box 蓝盒子 The ultimate combination of pranks and electronicsand the escapade that helped to create Applewas launched one Sunday afternoon when Wozniak read an article in Esquire that his mother had left for him on the kitchen table. 恶作

发表于:2019-01-22 / 阅读(116) / 评论(0) 分类 乔布斯传

唐顿庄园第二季第二集_6 [INT. DINING ROOM - EVENING] VIOLET, DOWAGER COUNTESS OF GRANTHAM I gather your footman Thomas has returned to the village. No. [Violet refuses the sauce Lang offers.] ROBERT, EARL OF GRANTHAM Crikey. Where did you se

发表于:2019-01-28 / 阅读(129) / 评论(0) 分类 唐顿庄园第二季

今天我们要讲的习惯用语里有一个共同的词ace。打扑克的人都知道,最大的牌就是ace。有了ace,你就胜券在握,你轻易不会出ace,而是备而不用,要把好钢用在刀刃上。这样就产生了下面我们

发表于:2019-02-03 / 阅读(177) / 评论(0) 分类 美国习惯用语

1) head to head / toe to toe 直面对战 2) face to face 面对面 3) see eye to eye 意见相同

发表于:2019-02-03 / 阅读(136) / 评论(0) 分类 OMG美语

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(267) / 评论(0) 分类 英语新闻

I Could Be The One (倾我所有) I could be your sea of sand (我愿成为你宁静的港湾) I could be your warmth of desire (我愿成为你温暖的庇护) I could be your prayer of hope (我愿成为你希望的祈祷) I could be your gift to everyday (我愿是你每一天

发表于:2019-02-08 / 阅读(187) / 评论(0) 分类 音乐咖啡厅

Todd: OK. Cat, we're back. We're gonna talk about things you can do. Cat: OK. Todd: Can you cook? Cat: Not really! Todd: No! Cat: Well, I can, but not very well. Todd: OK. What do you do for dinner? Cat: Buy take-away food. Todd: OK. When you buy tak

发表于:2019-02-21 / 阅读(91) / 评论(0) 分类 英语趣味课堂

OK, I'm going to talk about my one wish. I think everybody has one or two things they wish they could change about themselves and for me I really wish I could sing. Unfortunately I have a terrible voice. I cannot sing at all, and in Japan, this is ve

发表于:2019-02-25 / 阅读(113) / 评论(0) 分类 英语访谈对话
学英语单词
7-hydroxylethylthioethyldeoxyguanosine
anaplasmosis
antilocapridaes
atomic device
automatic data processing systems
Barcǎu(Berettyó)
base-pairings
biologic artifact
Biphenthrin
bisimilarities
bonded phase
casealutine
catastrophic hazard
cavern containment
cebocephalus
chassignite
chemical treatment of seed
Chester A. Arthur
chrismere
Clooneagh
close friend
cochlear part
composite fixing
conclusion-drawing
conductive mateial
cuspidaria multicarinata
data link connection
di-tert-amylhydroquinone
eastlings
employment theory
equivalent pipe length
felixes
fiber-optic transmission systems
filbore
flashlight composition
fleshlings
focal plane array (fpa)
francolinus pintadeanus
gabellers
gauze-like
gave the boot
giacomin
give sb a warm time
global tracking network
gradient thin-layer chromatography
graphics program
Himalayan blunder
hospitality financial and technology professionals
index mark
insurance rebate
intergenic DNA
J. O.
Jarotzks diet
lengthy report
liftout bolt
Ligamentum anulare stapediale
lineage group
linear variable-differential transformer
low-frequency gain
main float
manual configuration
masking value
maximum sum of hourly cooling load
merthiolate-formaldehyde
minor bulk
minor relay station
monopodially
mooneyhans
N. A. C. & O.
narrative form of statement
nasal lateral cartilage
non-sister chromatid
noses-to-noses
off-balance sheet transaction
outer wale
piston pin set screw
Plica cecalis vascularis
pogonia nudiusculum mitt.
positive plagiogeotropism
pseudosasa usawai makino et nemoto
pyrethrine
radiant flux
radiation cytology
rarefying
reliability centered maintenance
seignioral
service profit chain
single-edge sweep
sintering process
sky diving
Sparganium yunnanense
sulfoether
technology package
Third Department
underwriter's pseudonym
upright pianoes
wave surface
weight error
weld reinforcement
wheel hub cap
within bounds