以牙还牙,针锋相对

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. This will just take a minute. Youve probably chased a fly or two around the house this summer. And, chances are, it took a few swings before you brought down the buzzing nuisance.

发表于:2018-12-02 / 阅读(67) / 评论(0) 分类 Scientific American(八)月

[全屏观看] 点击右键- 另存为 可保存这个Flash影片

发表于:2018-12-12 / 阅读(99) / 评论(0) 分类 北美小学生英语一年级教材(牛津英语教材)

Youve given some thought to oxygen, carbon, uranium. But youve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and Technology, or NIST, says that ytterbium could find a rol

发表于:2019-01-08 / 阅读(49) / 评论(0) 分类 Scientific American(八)月

JEFFREY BROWN:And finally tonight: Japan two years after the massive earthquake and tsunami struck its northeastern coast. Ray Suarez has the story. RAY SUAREZ:The 2011 quake was one of the strongest in recorded history. It set off a tsunami that kil

发表于:2019-01-27 / 阅读(41) / 评论(0) 分类 PBS访谈环境系列

Tit for Tat针锋相对An American lady traveling in England some years ago, got into an compartment of a smoking carriage where an Englishman was smoking a pipe. For a short time she sat quietly expecting that the Englishman would stop smoking. But

发表于:2019-01-28 / 阅读(63) / 评论(0) 分类 英语小达人

Offering Substitute 提供代用品 Specimen Letters1. Offering Rayon in Place of Watered Silk提供人造丝代替水洗丝Dear Sirs,Thank you for your fax of yesterday (April 3) with your order No.456 for 5,000 metres of 100cm wide watered silk. We

发表于:2019-02-05 / 阅读(63) / 评论(0) 分类 实用英语
学英语单词
adeles
afferent vessel
anthropomorphosis
arrieta
Asekeyevo
bankruptcy partner
Barkald
belt conveyor feeder
Betma
blood lake
bravade
carbon resistance noise
Cestodaria
chnidosis
chronic laryngotracheitis
colonoscope
communialty
composite profiling method
corona shielding
current flow condition
cyclothymic disorders
data quality monitoring
diffusion vacuum pump
disposition without trial
divided battery control
doppler blind zone
double plays
emergent electron
environmental radioactivity
film strip(ping)
frame hole
geographic edition
ghiaour
Golding, Louis
hand drill steel
housewived
HOV lane
husbandryman
in manner of
incubation period
initial distress alert
intermediate-
jampa
judicial expertise
juried
Kaloshino
L. G. V.
latent organizational elements
LCDC
locator qualifier
Malawi kwacha
Martens test
mast and rigging
matte up
milke
modifica-tion
nemipterus japonicus
normal timing
Norton's theory
odortaxis
omic
outside left
paquebots
Pars labialis
phenamet
phenprobamate
pie-annet
primer fuel tube
printed paper
radial motor
random observation
rate of spoiled products
real McKoy
rock-filled wire gabion
rogel
Rubus salwinensis
run a business
Salmonella amersfort
schaapsteker
scribed sheet
spot maps
stagefrequency curve
Sterlite
study of document
sulpho-indigotic
superisation
surface wiring
tank running gear
task-forcest
Teramnus
the walking wounded
time-taking
to save
toxicometry
trigonum dorsale
twelve regular channels
u.s.a.s
Uroz
utriculus
vacuum leak hunting
viscous integrating accelerometer
West Newton