左旋叶绿素

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(166) / 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(135) / 评论(0) 分类 2006年慢速英语(十)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(174) / 评论(0) 分类 VOA标准英语2011年(十一月)

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(179) / 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(142) / 评论(0) 分类 环球英语 Spotlight

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(183) / 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(134) / 评论(0) 分类 英语时差8,16

Well, mushrooms are merely one of many types of fungi. Not all fungi grow in soil. However, mushrooms and other fungi do resemble plants in many ways, so much so that scientists long classified fungi plants, but they know better now. Eating Habits Wh

发表于:2019-02-24 / 阅读(118) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
anchorage drum
appropriation resolution
bearing cooling water pump
belt of earthquake
Brixton shuffle
Campanula punctata
cardiac tumor
causing both female and male sterility
chlorhexamide
climbin'
combiner tree
coming half year
conductor insulation
consumer-type
cooling time clock
corrosive poison
crazy paving path
cross linker
Curvatura lumbalis
degringolade
denworth
developmental response
dictyostelium aureostipes
disaster-preparedness
distributed sensor
dolich-, dolicho-
drop curtain
dual-slope integration
elementalist
encyrtids
epinephelus fuscoguttatus
exaflop
expurgated
fairling
fee for technical service
functional activity of qi
galactosylneoglycoalbumin
gaseous inclusion
ghermazien
glasslikest
Great call
handy-andy
helium system
Heracleum longilobum
high pressure steam boiler
high-speed perforator
high-temperature deposits
huddling
Hurro-
hyeralonemia
idesias
imputed wage
instability shower
internal design review
interspace of double glazing
Japanese Rain Goggles
late-forties
lattices
left-hand worm
love from
lower sonar room
mastostomy
microaerophillic bacteria
misterms
muddy flesh
mutual spectral density
mutually-owned
naval campaign
pannery
penial fissure
phenomenal constancy loudness
Pleocnemia
pmbl
preformed joint filler
Puccinellia manchuriensis
put to the door
quynn
revenue service day
riffola
ring-face gasket
rock schistosity
Romanesaue
root of tree
rotary forging
scriptoriums
sonde-type vibro-pickup
store control logic
strapon
strip-cutting forest
subalgebras
the-lost
traffic engineer
unabsolve
urysoun
vacuum-type pneumatic conveyor
value incollection
vent-escape raise
wireless interception
wittmen
wm
yachted
zero cross detection