早期修复

Astronauts at the International Space Station have overcome initial fears and are preparing to perform the first spacewalk beneath the shuttle to repair two dangling pieces of material. The material, used to fill gaps between tiles, is sticking out b

发表于:2018-12-05 / 阅读(39) / 评论(0) 分类 英语听力文摘 English Digest

The early bird gets the worm, and may avoid skin cancer. Because a new mouse study suggests that for humans, tanning in the mornings may be less likely to permanently damage in DNA and cause skin cancer. A mouses levels of the DNA repair protein XPA

发表于:2019-01-08 / 阅读(53) / 评论(0) 分类 Scientific American(十一)月

[00:22.13]Xiao Hu:Can you help me,Dick? [00:35.27]Dick:Yes.What is it? [00:37.88]Xiao Hu:I'm going to repair the window. It's broken. [00:42.71]Dick:What can I do for you? [00:45.14]Xiao Hu:Hold the ladder for me,please [00:48.35]Dick:OK.But be caref

发表于:2019-01-09 / 阅读(121) / 评论(0) 分类 小学英语北京版

Lesson 64: [00:03.58]What Do You Know?Have You Seen These Words? [00:09.35]bag bit,a bit of I have a bit of plastic.It's a white bit. [00:18.00]It's small.Look!I can hold it in my hand. [00:23.95]least,less [00:27.43]There are three bags of garbage.I

发表于:2019-01-09 / 阅读(151) / 评论(0) 分类 河北加拿大版初中英语

[00:53.89]Lesson 25 [01:04.47]What are Bob and Tang Ling going to do with the wall? [01:11.52]They are going to paint the wall white put up a notice saying Keep off, [01:19.60]and drill a hole for the electric wires. [01:25.55]Language points [01:30.

发表于:2019-01-10 / 阅读(184) / 评论(0) 分类 高中英语人教版高三

By Margaret Besheer Washington 03 November 2007 NASA astronauts have successfully repaired a damaged solar wing at the International Space Station. The operation was completed Saturday, after being postponed twice so engineers could further study how

发表于:2019-01-31 / 阅读(57) / 评论(0) 分类 VOA常速英语2007年(十一月)
学英语单词
accuracy of foundation
actimc
analytical standard
anamorphoscopes
another name for hogs
apotropous ovule
array processing computation
atrio-ventricular valve
Ayoquezco
backstay cable
basketball coach
be your own boss
benzylcarbonyl chloride
bistable type storage tube
blarg
British Standard Gauge
buy on trust
Calotropis gigantea L. Dryander
car wheel lathe
Carnivora
child-prodigy
color subcarrier oscillator
crest contraction
Cryptocarya depauperata
dacryotransillumination
de-register
directional cpmparison microwave relay
distillation cathode
doze ribeiras
effective separation radius
embowling
enigma canon
enzymatic oxidation
exchange of know-how
final chart scale
fpmr
froude's experiment
full flavour
fur-bearing trout
gallets
gas-protection clothing
genitalizations
getting off
harateen
hard direction
Hosston
hot-rolling arrangement
instantaneous g
kaizu bandaizan (japan)
kyung-won
Labuhanbajo
Leonardesque
lightlike event
main office
medium-densities
milk an enterprise
mountain meadow steppe soil
mutually exclusive investment
nationism
ngatses
Ningyo-toge
nodi lymphatici bronchiales
normal internal force
Notopterygium tenuifolium
numeric data
ouro
palmeirim
Palmer Peninsula
passive armor
passive microwave sensor
phagocytic vacuole
phenylacetyl
purification of kerogen
pycn-
rams
ransack one's brain
relation oriented leader
requited
run-through change gear
S-mottled
sandier
Saussurea umbrosa
Shitpur
silicon carbide heating rod
simultaneous confidence bounds
sinomontanine
socked away
somatic senses
subfamily perdicinaes
subsystem-programmer
syndiploid
tax at source
to have the lee ga u -ge of
tourist ticket
Ugranskiy Rayon
unforthbrought
Uninet.
Usu-zan
vacuum path
vacuum-type insulation
working roller
X type