可生物分解的有机化合物

Grammar Girl here. Todays topic is the complex-compound sentence. Guest writer Sal Glynn writes: Most writers worth their fingertip calluses begin as avid readers. We read books, magazines, and websites indiscriminately until we start to notice the w

发表于:2018-12-07 / 阅读(72) / 评论(0) 分类 英语语法 Grammar Girl

By Mario Ritter Broadcast: July 8, 2003 This is Steve Ember with the VOA Special English Agriculture Report. Recently, a listener in Nigeria told us about an organization called World-Wide Opportuniti

发表于:2018-12-07 / 阅读(59) / 评论(0) 分类 VOA2003(下)-农业与经济

It seemed like a good ideabecause rivers and ponds in Bangladesh were contaminated with bacteria, Bangladeshis switched to wells. But soon after, in the early 80s, researchers realized those wells were harming Bangladeshis with a new poisonarsenic. T

发表于:2019-01-08 / 阅读(45) / 评论(0) 分类 Scientific American(十一)月

今天我们要学的词是organic。 Organic, 有机的,绿色的。 Organic product, 有机产品。近年来,美国很多消费者开始崇尚绿色、有机食品。不过,统计数字显示, Organic food accounted for only 3.5% of the fo

发表于:2019-01-11 / 阅读(41) / 评论(0) 分类 英语每日一词

In other words, we need to think more modestly and subtly 换言之,我们得更为谦虚和细致地考虑 about when and how we can shape, rather than control, unpredictable and complex situations. 何时、怎样塑造而不是控制不可预测的

发表于:2019-01-18 / 阅读(36) / 评论(0) 分类 TED演讲科学篇

What do these five words have in common: hotdog, fireworks, well-being, waistline, sunset and ice cream? They could all describe a fun holiday celebration. For example: My holiday was wonderful! I went to a friends party and we laughed, ate and had a

发表于:2019-01-21 / 阅读(117) / 评论(0) 分类 2018年VOA慢速英语(十二)月
学英语单词
Agenesomy
algebraically closed
all thruster attitude control system
American smooth dogfish
antih(a)emolysis
ask for somebody
aspartyl-
azacycloheptane
balance factor
bed of packing
blast descaler
board of elections
cathode resistor
CM copper
co-toxicity coefficient
community security
compacted subgrade
corn cutterbar
coronary heart disease pill
corrugated canal gate
courtcraft
crossbite elastics
crossed grid
Csabacsud
Curtis, George Ticknor
date of will
disc lightning arrester
disclaims
dryoff oven
epimorphism of ring
fascia parotideomasseterica
fetichists
foreign going course
frequency selection
gangrenous septicemia
get robbed
Gousse
halogen bulb
head-to-tail linkage
high intestinal obstruction
historiae
hypertrophied cell
immatchless
infocratic
inlet pump
internationalized
interosseous space
intirnal sizing
jamaat
kefalas
keratosis pharyngea
Kishiwada
lithium periodate
long draft spinning
make the world go round
malay sea
Mansonella ozzardi
marble tile
message exhaustion
mill-worker
Minnie Creek
monoblock sleeper
neocranium
oracularly
panoramic adapter
picture camera
Positol
priority target
processed information
Pronuciferine
propion
prothrombinemia
rollneck
roons
rotating-anode x-ray tube
rustless
Salomonia elongata
saltaires
scalariform pitting
seepingly
siderophilic
skoliosi
solid probe
sonores
space variations
spayer
spillway crest gate
stand to gain
steffi grafs
switchmode
Taraxacum cyathiforme
three dimensional structure
tifle
transgenic animal
ultramarathoning
unpropping
usambara
van der waals-london interaction
vassiliev
west b.
Youngia pseudosenecio