音标:[bæktiәriә'klɔ(:)rәfil] ;
n. [生化]细菌叶绿素
n a substance in photosensitive bacteria that is related to but different from chlorophyll of higher plants
词型变化:名词复数形式 : bacteriochlorophylls

SCIENCE IN THE NEWS - Reforms at NIH / Tobacco Smoke a Danger to Children / A New Way to Add Iron to the Diet By Cynthia Kirk and Jill Moss Broadcast: Tuesday, February 15, 2005 VOICE ONE: This is SCI

发表于:2018-12-07 / 阅读(75) / 评论(0) 分类 科技之光

This is the VOA Special English Development Report. World No Tobacco Day is celebrated each thirty-first of May. The observance is meant to bring attention to the growing use of tobacco and its deadly effects. The World Health Assembly established th

发表于:2018-12-07 / 阅读(54) / 评论(0) 分类 2010年VOA慢速英语(五)月

The Mysterious Honeybee Disappearance 神秘的蜂群消失事件 by Rebecca A. Fratzke Honeybees are used to help many crops flower and grow. Thus, they play an extremely important _(1)_ in agriculture. However, since 2006, beekeepers in the US have

发表于:2018-12-08 / 阅读(95) / 评论(0) 分类 常春藤解析英语

AS IT IS 2016-11-05 Fall Colors Not Only Red and Blue 秋天的颜色不仅是红色和蓝色 This is Whats Trending Today. Americans often identify the two major political parties by the colors red and blue. The practice began with the 2000 election

发表于:2018-12-16 / 阅读(126) / 评论(0) 分类 2016年VOA慢速英语(十一)月

SCIENCE IN THE NEWS - A Taxi at 12,000 Meters? New Mini Jets Are About to Shake Up World of Air TravelBy Brianna Blake, Jerilyn Watson and Nancy Steinbach Broadcast: Tuesday, October 31, 2006 VOICE ON

发表于:2019-01-02 / 阅读(76) / 评论(0) 分类 2006年慢速英语(十)月

SCIENCE IN THE NEWS - International Treaty on Tobacco Control / Research Projects on Glaucoma By Broadcast: Tuesday, March 08, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special Englis

发表于:2019-01-02 / 阅读(96) / 评论(0) 分类 科技之光

By Mike O'Sullivan Los Angeles 27 March 2006 A museum in Los Angeles is bringing to life the people who lived in northern Europe thousands of years ago. Well-preserved bodies and artifacts from fog-sh

发表于:2019-01-07 / 阅读(148) / 评论(0) 分类 2006年VOA标准英语(三月)

Oh, no! Denzel thought. Whered THAT come from? He was looking at a big red dry stain that was on the carport where he always parked his car. There was only one thing to do: check his power steering fluid and his transmission fluid, both of which were

发表于:2019-01-07 / 阅读(81) / 评论(0) 分类 365个英语简短小故事

By Heda Bayron Hong Kong 21 December 2007 Japan has backed down from a highly controversial plan to hunt endangered humpback whales off Antarctica, after fierce criticism by Australia. The Japanese whaling fleet, however, still plans to hunt almost 1

发表于:2019-01-09 / 阅读(68) / 评论(0) 分类 VOA常速英语2007年(十二月)

Welcome to THIS IS AMERICA in VOA Special English. Im Doug Johnson. VOICE TWO: And Im Barbara Klein. This week on our program, we take you to the summer movies. This year's crop includes vampires, talking toys, an Iron Man and, of course, love. (MUSI

发表于:2019-01-11 / 阅读(104) / 评论(0) 分类 2010年VOA慢速英语(六)月

By Scott Bobb Johannesburg 27 March 2008 As Zimbabweans prepare to go to the polls Saturday, pre-election activity is being closely watched by an estimated 3 million Zimbabweans living in neighboring South Africa. Although they cannot vote, these exi

发表于:2019-01-12 / 阅读(98) / 评论(0) 分类 VOA标准英语2008年(三月)

Autumn Leaves Show Their True Colors As days grow shorter and nights grow cooler in Boulder, Colorado, the green leaves of summer have been putting on party colors. On cottonwood trees and aspens, theyre golden yellow coins. On Mapleton Avenue, the m

发表于:2019-01-13 / 阅读(103) / 评论(0) 分类 VOA标准英语2011年(十一月)

RACHEL MARTIN, HOST: And now some words you don't often hear together - all-girl, teenage, Indonesian metal band. NPR's Ashley Westerman has this profile. ASHLEY WESTERMAN, BYLINE: The band's called Voice of Baceprot. Baceprot means noisy in the girl

发表于:2019-01-16 / 阅读(90) / 评论(0) 分类 2017年NPR美国国家公共电台8月

AUDIE CORNISH, HOST: Need a distraction from the news? ARI SHAPIRO, HOST: We have one. CORNISH: It's a reminder of the good things in life that are free. SHAPIRO: Another commercial for Nicer Living. (SOUNDBITE OF ARCHIVED RECORDING) UNIDENTIFIED MAN

发表于:2019-01-17 / 阅读(126) / 评论(0) 分类 2017年NPR美国国家公共电台2月

Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Adam Navis. 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 In the last fifteen years, farmers

发表于:2019-01-19 / 阅读(83) / 评论(0) 分类 环球英语 Spotlight

The One With All The Thanksgivings 本集简介: After Thanksgiving dinner at Monica's, the gang tells stories about their worst Thanksgivings ever. In a series of flashbacks, we see Chandler learning of his parent's divorce (1978); Phoebe losing an

发表于:2019-02-04 / 阅读(79) / 评论(0) 分类 老友记(六人行)

RIO DE JANEIRO, March 23 (Xinhua) -- Brazil soccer legend Romario declared on Friday that he has no intention of running for the president of the Brazilian Confederation of Soccer (CBF). However, the now congressman endorsed Ronaldo to command the fu

发表于:2019-02-07 / 阅读(103) / 评论(0) 分类 英语新闻

RIO DE JANEIRO, Dec. 7 (Xinhua) -- The son of former Brazil great Romario has signed his first professional contract with Brazilian third-tier side Brasiliense. Romarinho, 19, joined the Brasilia-based outfit on Thursday, less than 24 hours after qui

发表于:2019-02-08 / 阅读(97) / 评论(0) 分类 英语新闻

雅思阅读考试备考中很重要的一个部分就是对雅思阅读文章题材的熟悉和掌握。 雅思阅读考试的文章通常分为生物、地理和社会科学三类。雅思文章的出处有很多,其中最实用的、便于积累背

发表于:2019-02-12 / 阅读(100) / 评论(0) 分类 雅思英语

Because chlorophyll is the chemical responsible for making leaves green, its absence allows chemicals such as carotinoids, xanthophylls, and others to give leaves their orange, yellow, and various other colors. As trees stop producing chlorophyll, th

发表于:2019-02-15 / 阅读(84) / 评论(0) 分类 英语时差8,16
学英语单词
advance-fee
agricultural propective duty
aldri
aphasics
appls
Bakéré
blenkins
bredia laisherana
coefficient of aberration production (lea & catcheside 1942)
complement integrated navigation
cumec
Cuneatochara
curtated
degenerate segment
diamond landing gear
digital facsimile recorder
disease-modifying
eight vertex model
elliptic restricted three-body problem
enamellers
environment symbol
equivalent per million
false architecture
flotation machine
free breathing transformer
gear control lever
Give me a rest!
go for an outing to
gotten your feet wet
hand sweeping
heat treatment verification test
hepatomphalos
in anticipant
ingolstadt
intradermal tests
Killie
left avertence
leiomyoma of small intestine
like a scalded cat
line scan ringing
liquated lead kettle
liquid flow relay
lump sum basis
magneto-telluric method
make a mock of something
malposed teeth
masonry cement
mean activity coefficient of ions
metaschoepite
methylzineb
michelson type laser
microlayer evaporation
moofing
multilateral netting
nummularis keratitis
oil burning vessel
optical impedance discontinuity
overhead pipeline
palaeogeothermal
park system
peppershaker
photoelectric(al)
pitch autopilot
Popovka Pervaya
potentiometric wheel
product term
propatria
proriasiform
proto-Cubist
radio exchange
re-case
regional interconnections
scruitore
secondary rudder
sectioned
shower and toilet
sierre
single suspension lug
single-aisle
spipistrellus hesperuss
spiroheptane
staffette
standard pyrheliometer
steaple
sutura conchopalatina
target state esti mator
the devil and his dam
thermodynamics of liquid metallic solutions
thymus dependent areas
tomurs
tooth (type) coupling
transformiminase
transpatronize
TS (tensile strength)
tuslaw
two-component model
typhoidette
unconfrontational
urolagniac
washable board
whiffier
Zongoiri