棱镜前置色散器

STEVE INSKEEP, HOST: Just about every American adult has heard the names Roe and Wade. Roe v. Wade was the 1973 Supreme Court decision legalizing abortion in the United States. Not so many people know about the real people involved, and now a new pla

发表于:2018-12-17 / 阅读(58) / 评论(0) 分类 2017年NPR美国国家公共电台1月

The Government Communications Security Bureau (GCSB) is our spy organisation. At the moment, it can only legally spy on foreigners in New Zealand. However this organisation made a mistake spying on Kim Dotcom because he is a permanent resident. Also,

发表于:2018-12-31 / 阅读(55) / 评论(0) 分类 新西兰英语

Spectrum 光谱 Do you know what a spectrum is? 你知道光谱是什么吗? It is a series of colored lights. 它是复色光。 How can we see a spectrum? 我们怎么能看到光谱? When you see sunlight through a prism, you may see a rainbow

发表于:2019-01-10 / 阅读(61) / 评论(0) 分类 与美国小学生一起学英文第11册

Prisms 棱镜 Why can we see rainbows after rain? 我们雨后为什么能看到彩虹? We can see rainbows after rain because droplets of moisture in the air work like a big prism. 这是因为空气中的水滴就像一个大棱镜。 So what is

发表于:2019-01-10 / 阅读(52) / 评论(0) 分类 与美国小学生一起学英文第10册

歌曲:Katy Perry-Roar Roar, the first cut off of Katy Perry's upcoming album Prism, hit the airwaves last week and went right to the top of the Billboard charts (for digital songs). One person who is particularly fond of the song (besides everyone

发表于:2019-01-10 / 阅读(95) / 评论(0) 分类 英语娱乐八卦

By Andre de Nesnera Washington 08 November 2007 Georgian President Mikhail Saakashvili, who is mired in a deep political crisis, Thursday agreed to call early presidential elections and said he would lift the state of emergency. In this background re

发表于:2019-01-16 / 阅读(30) / 评论(0) 分类 VOA常速英语2007年(十一月)
学英语单词
accended
action for negligence
adaptive control scheme
AEnon
al qusaymah (el quseima)
angiomesenteric band
anshel
approved school
Araia
as-sahab
autoicon
basket flowers
beaded lake
beetle calender
Bereg
binary X-ray source
bus.
characteristic curve of stand density
chilling machine
chloralis
Chordaceae
choreonema thureti schmitz
chron-
competitive performance
concentricity checking fixture
construction of warehouse
control spectification
covertures
critical surface pressure
cultural standard
damped angular frequency
deep pockets
descamisados
Dhaatu
dissynagogue
DiuralFurosemide
document data type
drop in the ocean
dry plate
elution cycle
expenditure-switch effect
farraguts
fast Walsh transform
fetid sandstone
firn line
flange press
football mode
gear pair with reference center distance
have a lot of time for
hypersorption
inceptions
incremable
integration grouping
juvenilise
Kast's syndrome
Kivi-Vigala
know fine
lash into
light alloy housing
low temperature sintered ceramics
Lycianthes solitaria
marine inorganic pollution
marssonina potentillae
maser medium
mid-fielders
middle watcher
Middx.
milk product
miniaturization
moistening dryness for removing phlegm
motionated
multicamera filming
Nansen
non porous solid
nonconciliatory
ominating
optical thickness
overcareful
photoelectromagnetic (pem) effect
physiologically
phytoenergetics
pressure build-up vaporized
proletarian dance theatre (europe)
Pātāveh
RHYNCHOBDELLIDA
rigoroso
root ginger
saysi
scrappies
scratch intensity
self-ingiting buoy light
sensitivity of a measuring instrument
side lap
single point control of motion
soppet
surface boat
tapping adjuster
Thermomonosporaceae
thyroid gland aplasia
undermilk
Van Der Rohe
wakeaday