锰明矾, 锰矾

1: I am Andy. 2: Hello! 3: Good morning. 4: This is Kay. 5: This is Miss Dizzy. Your English teacher. 6: How do you do. 7: Hi! 8: Good bye! 9: So long. 10:Bye-bye! A: Hello! I am Andy. Hello! I am Mr. Write. I am Bobby. I am Kay. B: Good morning Mr.

发表于:2018-11-30 / 阅读(131) / 评论(0) 分类 小学英语300句

Wanted: Chefs in Uganda 乌干达奇缺厨师 KAMPALA, UGANDA As the middle class and tourism industry grow in Uganda, so, too, do the number of restaurants and high-end hotels. The owners of these establishments, however, have often had to recruit e

发表于:2018-12-16 / 阅读(70) / 评论(0) 分类 VOA标准英语2015年(八月)

This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. It might look and even feel like paper, but a new material created by scientists at MIT is designed to be an oil spill super-absorber. This technology d

发表于:2019-01-08 / 阅读(135) / 评论(0) 分类 Scientific American(六)月

This is Scientific American -60 seconds science. Im Cynthia Graber. This will just take a minute. A coal mine can degrade its local environment. But fungus may inadvertently help clean up the mine with its own waste products. Researchers worked with

发表于:2019-01-08 / 阅读(141) / 评论(0) 分类 Scientific American(七)月

This is scientific Americans 60 second science,I'm Cynthia Graber.This will just take a minute.A coal mine can decrease the local environment but a Fungi may indivertantly help cleanup the mine with its own waste products. Researchers worked with the

发表于:2019-01-08 / 阅读(151) / 评论(0) 分类 Scientific American(七)月

Donny Hathaway, who gained fame in the 1970s as a Grammy Award-winning singer, songwriter and producer, left behind some of soul music's most-compelling tunes, including his 1973 hit, Love, Love, Love. The smooth jazz rendition from Kirk Whalum's alb

发表于:2019-01-09 / 阅读(107) / 评论(0) 分类 VOA标准英语2010年(九)月

This is the VOA Special English Development Report. Dye can bring a little color to life. Most clothing is colored with dyes. Modern, manufactured dyes can be costly. Natural dyes from plant and animal products have been used since ancient times. So

发表于:2019-01-11 / 阅读(108) / 评论(0) 分类 VOA慢速英语2008年(十一)月

This is the VOA Special English Development Report. Dye can bring a little color to life. Most clothing is colored with dyes. Modern, manufactured dyes can be costly. Natural dyes from plant and animal products have been used since ancient times. So

发表于:2019-01-11 / 阅读(106) / 评论(0) 分类 VOA慢速英语2007年(五)月

This is the VOA Special English Development Report. Dye can bring a little color to life. Most clothing is colored with dyes. Modern, manufactured dyes can be costly. Natural dyes from plant and animal products have been used since ancient times. So

发表于:2019-01-11 / 阅读(121) / 评论(0) 分类 2010年VOA慢速英语(八)月

Don: Oh, Yael, I just read the most beautiful poem. No wonder our ancestors developed writing--they probably wanted to treasure poetry for posterity. Yael: Actually Don, writing was developed to keep track of more mundane things, like money. For exam

发表于:2019-01-22 / 阅读(217) / 评论(0) 分类 英语时差8,16

DEVELOPMENT REPORT - Bringing Color to Life With Natural Dyes By Jill Moss Broadcast: Monday, August 15, 2005 I'm Barbara Klein with the VOA Special English Development Report. Dye can bring a little

发表于:2019-01-30 / 阅读(130) / 评论(0) 分类 农业与发展

Here are 7 health problems from eating too many almonds! 以下是吃太多杏仁会导致的7种健康问题! 1.Kidney Stones 肾结石 Certain diets and foods can make people more prone to kidney stones, especially diets high in oxalates. This is

发表于:2019-02-07 / 阅读(126) / 评论(0) 分类 英语美文

DAVID GREENE, HOST: The island nation of Trinidad and Tobago is famous for calypso and soca, the infectious music that takes center stage during Carnival. But during the Christmas season, another type of music dominates. John Otis is going to tell us

发表于:2019-02-21 / 阅读(106) / 评论(0) 分类 2018年NPR美国国家公共电台12月
学英语单词
abkary
air force cadet screening test
alphanumeric bookkeeping machine
Anacardiaceae
animal tolerance
associable design
B.Adm.Eng.
bedfellows
booked for
brushed aside
burnt coal
cathode vacuum etching
centrifugal lubricator
chemi-ionization process
cherf
chongoni
clinozoisites
comble
commercial agencies stationed abroad
coordinatively
cratylus
crowper
detonating-cartridge
dynamic fragmentation
energy-conversion device
expired gas
factorial experimentation
ferro nickel alloy
fibrae perventriculares
first press felt
fore-hand rent
Fort Saint-Pierre
Fraas breaking point
Gajisan
gammier
gastric indigestion
haliplankton
Hegar's dilator
Holboellia angustifolia
Horner syndrome
immune-related peptide
include me out
input source
lattice vibration
Leptohymenium
linearized filter
Linociera leucoclada
Lubasz
lubritory
luttmann
Marano, L.di
Marcillac-la-Croisille
material wastage rate
noncommunism
nonhaemolytic
oloron
opportunity for buying large quantity
overdramatic
overhead cableway
overhead crane with grab
parenesis
pastor sturnuss
perfluocarbon
perihelion precession
pock-mark
Polygala globulifera
powder-metallurgy
precast ribbed roof slab
propeller blade spacing
prophylaxi
pull-ring
pullbutton
radiotelegraph autoalarm
rail-slitting mill
rasing raze
reduction thickening
refrigeran
Richella
semigraphical method
sequential structure
setting circle
sigmoidaugmentationcystoplasty
stack dilution factor
steering gear assembly
supereon
syn synchronous idle
Tafel equation
thin shell surface
torricellis
trade name aspirin
trithio
tuco-tucos
turretlike
unidimensional search
urban growth
violet-tinged
wastlers (mediaeval england)
wedge beam
weighted 4-bit code
widely-accepted
winch motor