[化] 二乙酰乙酸乙酯

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发表于:2018-12-04 / 阅读(287) / 评论(0) 分类 英文魔法师字源大挪移

AS IT IS 2014-05-25 Scientists Search for New Ways to Stop Mosquitoes 科学家们寻找新的方法来对付蚊子 The sound of a mosquito can mean trouble in many parts of the world. The bite of a mosquito can be deadly. Today, we will hear about s

发表于:2018-12-08 / 阅读(247) / 评论(0) 分类 2014年VOA慢速英语(五)月

Anne Karin Kaasa - Gje Meg Handa Di Gje meg handa di, ven, naring;r det kveldar, det blir moslash;rkt og me treng ei hand Lat dei ljose og venlege tankar, fylgja med inn i draumars land Lat varmen fraring; ein som er glad i deg, tenne stjerner i mosl

发表于:2018-12-14 / 阅读(284) / 评论(0) 分类 十八首全球最好听的女声

美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 630,000 people died of malaria-related

发表于:2018-12-19 / 阅读(213) / 评论(0) 分类 VOA双语新闻 2014年1月

bedizen, [bi'diz(ə)n] v 把装饰得过分华丽而俗气;穿着俗丽 【记】bed床

发表于:2018-12-30 / 阅读(234) / 评论(0) 分类 不择手段背单词

β-Amyrin β-香树脂醇 α-Amyrin acetate α-香树脂醇乙酸乙酯 β-Amyrin acetate β-香树脂醇乙酸乙酯 β-Amyrin palmitate 棕榈酰β-香树酯 Anabasine 毒藜碱 Anagyrine 臭豆碱,安

发表于:2019-01-03 / 阅读(213) / 评论(0) 分类 医务英语

Carolyn Everson is Facebook's (FB) VP of global marketing solutions. When asked what's the best advice she got from Lean In--the No. 1 best seller by Facebook COO Sheryl Sandberg, she listed 10 of them as follow: 卡洛琳艾弗森是Facebook全球营销

发表于:2019-01-08 / 阅读(237) / 评论(0) 分类 求职英语

Promising Mosquito Repellent Announced美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 6

发表于:2019-01-14 / 阅读(222) / 评论(0) 分类 VOA标准英语2014年(一月)

BBC Learning English Weekender Shappi Korsandi Stand up Callum:Hello, I'm Callum Robertson and this is Weekender. The Edinburgh International festival is a month-long arts and cultural festival held in August in Scotland's capital city, Edinburgh. A

发表于:2019-01-16 / 阅读(505) / 评论(0) 分类 Weekender

One Police stops on police vehicle outside one Victoria's Bar. After the preparation, as necessary arrests?, this liquor drive slightly mixes. Suddenly he sees to have a young people shakely goes out from bar, spend the many figures only then finds

发表于:2019-01-17 / 阅读(186) / 评论(0) 分类 白领英语晨读

今天我们要给大家介绍两个以

发表于:2019-01-30 / 阅读(316) / 评论(0) 分类 美国习惯用语

今天我们要讲的习惯用语里有一个共同的词ace。打扑克的人都知道,最大的牌就是ace。有了ace,你就胜券在握,你轻易不会出ace,而是备而不用,要把好钢用在刀刃上。这样就产生了下面我们

发表于:2019-02-03 / 阅读(269) / 评论(0) 分类 美国习惯用语

1) head to head / toe to toe 直面对战 2) face to face 面对面 3) see eye to eye 意见相同

发表于:2019-02-03 / 阅读(221) / 评论(0) 分类 OMG美语

今天Larry和李华要到朋友Bob家里,Bob因为要搬家,所以把他的立体音响卖给Larry。今天李华会学到两个常用语:dibs和shotgun. LL: I'm really glad that Bob gave me fi

发表于:2019-02-05 / 阅读(267) / 评论(0) 分类 美国之音《流行美语》

It's never too late to start something new. 去尝试新事物永远都不用在乎年纪。 Anna Stoehr, the oldest resident of Minnesota, signed up for Facebook just in time to get all those happy birthday wall posts when she turns 114 this weekend

发表于:2019-02-08 / 阅读(203) / 评论(0) 分类 英语新闻

On its website, a history of the company makes no mention of leador indeed of Thomas Midgleybut simply refers to the original product as containing a certain combination of chemicals. 在它的网站上,公司的历史没有提及铅──也没有提

发表于:2019-02-17 / 阅读(204) / 评论(0) 分类 万物简史

By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo

发表于:2019-02-17 / 阅读(218) / 评论(0) 分类 万物简史

Lead is a neurotoxin. Get too much of it and you can irreparably damage the brain and central nervous system. Among the many symptoms associated with overexposure are blindness, insomnia, kidney failure, hearing loss, cancer, palsies, and convulsions

发表于:2019-02-17 / 阅读(226) / 评论(0) 分类 万物简史

If you were going to a restaurant and wanted a healthier option, 如果你去饭店,你想吃得健康一点, which would you choose, grilled or fried chicken? 你会选择哪种食品呢,烤鸡还是炸鸡? Now most people would answer grill

发表于:2019-02-21 / 阅读(245) / 评论(0) 分类 TED演讲教育篇

Regnet faller ned som tarer av et sorgfylr ar Uhelbredelige sar som i en tidlos klagesang dveler endelose savn og du som drev sa langt av sted i soken etter sjelefred For kun morket kan besta hvor alt det vakre ma forga du som bearrer verdens byrder

发表于:2019-03-02 / 阅读(270) / 评论(0) 分类 英文摇滚歌曲
学英语单词
.msp
accuracy of position fixing
agricultural acreage
alport
ammonium hyposulfite
analysis of historical data
anti-plaque
autotronic
Banza Kongo
be an improvement on
be at an advantage
beta-tetralol
blank generation
cam driven dial feed
cantonese cuisine
cast mo(u)lding
chrolactomycin
cimaterol
cirey
context-dependent regulation
core element
creative mind
Cushing reflex
cushioned hammer
customer owned and maintained communication equipment
data calling
delesseps
eddy thermal diffusivity
electrical automatic control equipment
enviro-friendly
evaporating temperature
factors U
failure in tension
family Priacanthidae
fedrilate
field name
fringe multiplication
giant reeds
gillespies
goaf filling
hardware process control block
Head, Edith
heating mould curing
Heliotropium formosanum
Helms-Burton Act
hexamethylene-diamine
hydropenic
justified raise
Kaouara
landsberg
leading buoy
line broadening
locutor
lomitapide
mad staggers
merceya ligulata (spruce) schimp.
metasublanguage
Myxostoma
natural education
nonelimination
occamist
out of work insurance
paternidad
Peristera, Nisis
piecework work
piezotransistor
plastic coal
polycistrooonic transcript
polynomial of high degree
prescribed condition
pukanan
racing stable
radiation damage inhibitor
radonproof
relaxin
roll-on ferry
rouan
Rukuriri
Ruswil
satisfyingextremely
self-adjoint matrix
separation of levels
sidewall register
sight head
Sinacalia davidii
solid stop
speak well
statosphere
Stevens former Stevens
storage electronic scanning
stream of bits
summer stagnation
swallowingcapacity
tealite
tomosyntheses
tough-guys
tragule
untowardnesses
upper frame rail
velocity search
vertical double action press
wise man