[化] 四联苯

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(169) / 评论(0) 分类 万物简史

情景对话: Let's look for a well. 我们去找一口井吧。 We found a well at daybreak. 我们在黎明时分找到了一口井。 知识点笔记: 1、Daybreak 黎明 【例句】 We need to get there before daybreak if you want to get fro

发表于:2018-12-18 / 阅读(722) / 评论(0) 分类 每天三分钟学英语

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(146) / 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(125) / 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(116) / 评论(0) 分类 英语听力文摘 English Digest

今后,大家对贝克汉姆的称呼就不光是球星或者型男了,他多了一项头衔夜店老板。 David Beckham is a soccer star by trade, but apparently he also wants to add restaurant owner to his resume. He allegedly hopes to open a

发表于:2019-01-07 / 阅读(146) / 评论(0) 分类 阅读空间

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(162) / 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(167) / 评论(0) 分类 Scientific American(十一)月

This is AP News Munite. UN officials say more than 73,000 people in Haiti have received food last week but many more still wait. Some desperate crowds turn to looting to get what they need six days after the earthquake. Haitian authorities say they h

发表于:2019-01-11 / 阅读(186) / 评论(0) 分类 美联社新闻一分钟2010(一月)

Everyday Grammar: In, On, and At 日常语法:In,On和At的用法 When English speakers talk about time and place, there are three little words that often come up: in, on, and at. These common words are prepositions that show a relationship between t

发表于:2019-01-12 / 阅读(148) / 评论(0) 分类 2015年VOA慢速英语(四)月

Todd: So, Al, we're going to talk about water. How much water do you drink every day? Al: I guess about three liters, so six of those 500 millileter, five or six of those 500 millileter bottles. Todd: Yeah, that's a lot. That's about what I drink. Ye

发表于:2019-01-16 / 阅读(124) / 评论(0) 分类 原版英语对话1000个

A: Does it look like a good fit? B: It's definitely your size. A: Yes, it is very nice. I'll take it. B: How do you prefer to pay? A: Let me use my credit card. B: Now, if you'll just sign here. A: No problem. B: I hope you enjoy your purchase. Good-

发表于:2019-01-20 / 阅读(157) / 评论(0) 分类 购物英语对话

A: Does it look too small? B: It fits you to a T. A: I agree. I'm going to buy it. B: Cash or charge? A: I'll charge it. B: Sign here, please. A: There you go. B: Good-bye, and thank you for shopping here.

发表于:2019-01-20 / 阅读(174) / 评论(0) 分类 购物英语对话

A: What do you think? B: It looks great. A: I would like to purchase it. B: Will this be cash or charge? A: Here, take my credit card. B: Just sign here, please. A: Sure. Here you go. B: Here's your receipt. Have a nice day.

发表于:2019-01-20 / 阅读(164) / 评论(0) 分类 购物英语对话

A: Excuse me. Can you help me? B: Certainly. What can I do for you? A: I need to purchase a sweater. B: What is your size? A: Medium should be fine. B: Is this one okay? A: Hmm. Can I try it on somewhere? B: The fitting room is in the left corner.

发表于:2019-01-20 / 阅读(135) / 评论(0) 分类 购物英语对话

A: Excuse me. Could you help me with something? B: I'll certainly try. A: I'm looking for a nice sweater. B: What size do you wear in a sweater? A: Medium is my size for shirts and sweaters. B: Here's a medium. What do you think? A: I like it. Where

发表于:2019-01-20 / 阅读(164) / 评论(0) 分类 购物英语对话

By Greg Flakus Mexico City, Mexico 07 April 2006 watch Waterless Toilet report At the recently held Fourth World Water Forum in Mexico City, hundreds of governmental agencies, international organizati

发表于:2019-02-03 / 阅读(225) / 评论(0) 分类 2006年VOA标准英语(四月)

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(301) / 评论(0) 分类 英语新闻

The Caterpillar The Caterpillar looked at Alice and said nothing. Perhaps it doesn't speak', Alice thought. But at last it did speak. Who are you? it asked. It was a hard question. Alice answered, but not very quickly: I--I don't know. I knew who I w

发表于:2019-02-06 / 阅读(168) / 评论(0) 分类 趣味英语

她是来自爱尔兰的The Celts,她的声音纯美安静,为我们洗涤尘世的浮躁。 你可以随她的歌声,逡游于广袤深洋,崇山峻岭,阔邃林间,无际平畴,万里苍穹,甚至紧紧包裹着你的大气当中,只有配得上天籁称誉的声音,才能如此勾起你飞翔的潜意识。是的,就是恩雅,洁白无暇

发表于:2019-02-07 / 阅读(138) / 评论(0) 分类 美国乡村音乐
学英语单词
absolute integrable
acknowledge commodity production
air exit hole
analytically normal local ring
atheromatous ulcer
average cross-section
azedarach
bioresuspension
BIOSX
bronchus segmentalis basalis medialis
calorimetric
Calumpit
cared nothing about
claw suspension
coffeestall
collector modulation circuit
coloratoin
complex of spheres
correction test
degenerate primer
dehydrating
Delamar
digital integrating meter
double-d
drug-induced parkinsonism
electrical machine
electrolytic etching
electronneutrino
ellipsoid of rotation
Euryale ferox Salisb.
exotic pathology
final accounts of completed project
frame offset
geochronologic scale
get a hold of oneself
glass metallic melter
graphic instrument
graphics display
grown for its fiber and seedoil
Henry Hudson
hold oneself aloof
homicidal arsonsit
idiomorphous
if I had my rathers
INTERCARGO
interproscan
intestinal convulation
Jugra
katonya
kephrinei
killing time
Korahites
labuli culminis
lithophyses
low-profile layout
Maackia ellipticocarpa
manzanal
Maule, Prov.de
Melica
membranated
micromagnetic
middle voice
most vital
motorcycle sidecar
multiple appearance
neocindilide
oil barrier
Ontarian
ordered population
over concerned
peak-load regulating
Peter I
Phyllostachys glabrata
pleasant note
polar nuclei
policy of least privilege
polystichum squarrosum(.f)ee
raschels
rectifier for contact protection
renal physiology
Sakmarian
Santa Angelo di Lomellina
saturation steam table
savell
selleys
serial-parallel circuit
Seven Sisters
snaking motion value of specimen stage
stockmarket-linked
structural strain
strudwick
synorogenic
system variable
time parity
trosch
trouble man
twin-like
two-sided operator
unemployables
unformable
unit-cohesion
unpliancy