凸纹组织,条纹组织

By Mignon Fogarty Today were going to learn about the old writing adage Show, dont tell. The podcast edition of this article was sponsored by Smarties: the gluten-free, dairy-free, tamper-evident, low-calorie candies for Halloween. Buy Smarties this

发表于:2018-12-01 / 阅读(217) / 评论(0) 分类 英语语法视频

The Cotton Tree 棉花树 Sing well fare the cotton-tree! 一起来祝愿棉花树 Bravely may it grow, 长大吧,发出勇气的光彩! Bearing in its seeded pod 让种荚里藏身的棉朵, Cotton white as snow! 像雪花一般洁白! Spi

发表于:2018-12-18 / 阅读(128) / 评论(0) 分类 英国学生科学读本

New Hope for Spinal Cord Injuries By Patricia Anstett / 2005, Detroit Free Press , Knight Ridder Newspapers. Distributed by Tribune Media Services. A world of patients with spinal cord injuries is wat

发表于:2018-12-19 / 阅读(212) / 评论(0) 分类 彭蒙惠英语

BBC Learning English London Life Tapestry January 25, 2006 PLEASE NOTE: This is not a precise transcription of this programme Callum:Hello I'm Callum Robertson and this is London Life. One of the departments of the University of London is SOAS or, t

发表于:2018-12-19 / 阅读(192) / 评论(0) 分类 伦敦生活

Many people who have an accident and break their back, never walk again. Your spinal cord is inside your backbone. It sends messages to your brain. It is part of your nervous system which controls your movements. In New Zealand, we have about one new

发表于:2018-12-31 / 阅读(194) / 评论(0) 分类 新西兰英语

It's not often that(1) I find myself trapped, stuck in the middle of two things. However, I put myself in the middle of two things the other day deliberately(2). The two things were my dog and cat. The dog wanted to get the cat, and the cat wanted to

发表于:2019-01-01 / 阅读(191) / 评论(0) 分类 英语博客 A cup of English

Well, I have designed for the first lady for a long time now. It's a wonderful opportunity for someone else to have it as well. I think it's the gift that I was given. I can't, what would be a good word, I can't own it, I can't hold it. I think someb

发表于:2019-01-01 / 阅读(141) / 评论(0) 分类 访谈录2013年

FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. CHRISTOPHER CRUISE: And Im Christopher Cruise. Today, we will tell about possible hope for children suffering from damage to their nervous system. We will also tell

发表于:2019-01-12 / 阅读(208) / 评论(0) 分类 2011年VOA慢速英语(二)月

Study: Cleaning Umbilical Cord Saves Lives Simple use of an inexpensive disinfectant could save hundreds of thousands of newborn lives each year. That's the conclusion of recent studies from South Asia. The umbilical cord is usually cut right after b

发表于:2019-01-14 / 阅读(250) / 评论(0) 分类 VOA标准英语2012年(二月)

By Deborah Block The Tohono O'odham, Arizona 16 November 2009 Native Americans in the United States have been weaving baskets for centuries. Archeologists have discovered baskets that are thousands of years old. They were used to hold food and other

发表于:2019-01-14 / 阅读(146) / 评论(0) 分类 VOA标准英语2009年(十一月)

The world is woven from billions of lives, every strand crossing every other. 语音讲解: 单词发音 woven 英/'w??vn/ 美/'wo?vn/ billions /'b?lj?nz/ strand /str?nd/ 词间连读 world is /w??ld?z/ billions of lives /'b?lj?nz?vla?vz/ 词汇讲解

发表于:2019-01-17 / 阅读(185) / 评论(0) 分类 跟着Gwen学英语之每日早读

Voice 1 Welcome to Spotlight. Im Christy VanArragon. Voice 2 And Im Mike Procter. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 1 It is stronger than ste

发表于:2019-01-19 / 阅读(156) / 评论(0) 分类 环球英语 Spotlight

The construction process of the nest first is creating the foundation and the infrastructure. And then I follow those larger sculptural shapes that I bolt together with smaller material that I can weave in and around. 搭建巢窝的第一步就是先创

发表于:2019-01-20 / 阅读(144) / 评论(0) 分类 留美老师带你每日说英文

英语中的俚语、口语或“顺口溜”很多,它们的意义,往往与字面意义不同,有时也不合文法的结构,所以正确了解和灵活使用,是学习英语者的难题之一

发表于:2019-02-01 / 阅读(161) / 评论(0) 分类 趣味英语

WASHINGTON, Nov. 11 (Xinhua) -- The U.S. Food and Drug Administration (FDA) on Friday approved HEMACORD, the first licensed hematopoietic progenitor cells-cord cell therapy. HEMACORD is indicated for use in hematopoietic stem cell transplantation pro

发表于:2019-02-03 / 阅读(250) / 评论(0) 分类 英语新闻

By Robert Raffaele Washington 06 May 2008 Medical researchers say a simple decision by expectant mothers can mean the difference between life and death for thousands of people. Blood from umbilical cords has been used in life-saving transplants for p

发表于:2019-02-06 / 阅读(160) / 评论(0) 分类 VOA标准英语2008年(五月)

Fate is woven together like a cloth. One's destiny intertwines with many others. 语音讲解 单词发音 woven v. 编织;交织 th音对应的两个音是//和//。口型都是这样: cloth.png cloth 一块布 cloths 几块布 clothes 衣服 in

发表于:2019-02-13 / 阅读(228) / 评论(0) 分类 跟着Gwen学英语之每日早读

I buy my own things, I pay my own bills 我买自己的东西 为自己买单 These diamond rings, my automobiles 那些钻石戒指和我的那些座驾 Everything I got, I bought it 我所得的一切都是我自己买的 Boys can't buy my love, bu

发表于:2019-02-13 / 阅读(161) / 评论(0) 分类 听歌学英语

It's Not My Fault Mother (reprimanding her small daughter): You mustn't pull the cat's tail. Daughter: I'm only holding it, Mom. The cat's doing the pulling. 不是我的错 妈妈(正教训她的女儿):你不该拽猫的尾巴。 女儿:妈,

发表于:2019-02-25 / 阅读(174) / 评论(0) 分类 趣味英语

Voice 1 Hello. Im Mike Procter Voice 2 And Im Marina Santee. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 2 The sound of new l

发表于:2019-03-04 / 阅读(254) / 评论(0) 分类 环球英语 Spotlight
学英语单词
Acheans
air transport service division
aramiss
argyris
at the desk
boot password
bridgport operating system software
buckler mustard
calcium manganate
capitol buildings
cast on
cefracyline
chance of promotion
Christcentrism
clouds from volcanic eruptions
collinear crack
conidiogenetic
contranatural
countermeasure airborne infrared
dear friend
entrance examinations
equivalent noise input
error bounds
eurybaric
existential definable set
fare-stages
featherbrains
feed-back coupling
feiles
fogdens
geocarpy
Goodsoil
grounding plug
guggled
hue-modulated colour photographic sound track
hyperbradykininemia
imprivacy
insuring against
introduce disease
Invermay
Jerzmanowo
Kurnakov
lgth
likelihood analysis
linc
local-agency
loose material
luprops orientalis
made no difference to
major prophet
manganhedenbergite
mathematical inversion
mechanical caging
mendus
misreceiving
mobile stress
motive steam condenser
multisignal
nagorny-karabakh
no-leakage magnetic circuit
nonadulterated
nonisotropic materials
normed linear space
northpark
NOT-OR element
orhel
Orleanses
parametron logic circuit
Pennine Range
photoswitch
Poa dahurica
pump casing
quizzible
rabbit pox
rack driving
rack type core oven
radionuclide vesico-ureteral reflux test
recognized
recombinational repair
rostratest
Shamballa
silk screen paint
smuttiest
stellate ganglionectomy
sublevate
suleimaniyah
supernally
swinepipe
terminal system control units
thujyl
tool window
tree sloths
trione
tsarlike
upclimbs
us price
waste effluent
waste-heat power generation
winter-storm
zynsky