再入大气层空气动力学

But people won't decide to do it until they recognize the need for it, and that's the problem that we have right now. 但是直到人民意识到真正的需要,才会决定去做,这就是现在的问题所在。 So there's been plenty of people

发表于:2018-12-13 / 阅读(49) / 评论(0) 分类 TED演讲教育篇

What do a hummingbird, a moth, and a maple tree have in common? They all use a similar trick to fly. Okay, okay, a maple tree doesnt fly. But its seeds kind of do. Maples make those little whirlybird seeds you see spiraling down in droves each sprin

发表于:2019-01-30 / 阅读(157) / 评论(0) 分类 60秒科学

Lesson 356 I'm improving. 1.I'm improving.我好多了。 2.My work is improving.我的工作渐有起色。 3.My health is improving.我的健康善正在好转。 4.I'll improve it.我会加以改进。 5.I want to improve my English.我想提高英语

发表于:2019-02-12 / 阅读(90) / 评论(0) 分类 辛沛沛NO-BOOK 辛沛沛傻瓜机口语极短句

You know, most people in life major in minor things. That is, theyre focused on how to make a living instead of how to design their life. They get caught up in the day-to-day experiences that they make real important when actually, in the long term,

发表于:2019-02-14 / 阅读(64) / 评论(0) 分类 瞬间秒杀听力

Reentry Heat [Why does a space shuttle get hotter on reentry than on liftoff?] 能想象航天飞机穿越大气层时受到摩擦产生的热量有多惊人吗?来一起听听吧。 M:Dolle,we now know that the space shuttle Columbia burned up whe

发表于:2019-02-24 / 阅读(68) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
acquaint sb with
adoringly
adultresses
ammonium paratungstate
Anaspidacea
andes cotton
andy roddick
ascience
auxiliary bishops
beat all hollow
Cedrela sinensis A.
celiac lymph nodes
Chlorothene NU
Christians of Saint Thomas
circulation frequency of the word classification
contraiadicate
control rod scram pilot valve
corrected curve
crymble
cystic-fibrosis
darco
decumbent
die depth
domain equation
double-hands
drill doctor
forage-acre
free falling body
Froin's syndrome
fruitstand
gatehead
glycolipidome
grammar of politics
Guale
hang glider
hot site and cold site
hyoid apparatus (or lingual apparatus)
ill humours
Intraglobin
jivier
judes
kafehydrocyanite
kanzo
karst landscape
ketomycolate
l'ombre
lex loci domicilii
line pack
lumber core plywood
maximum-energy-sum filter
mean of highest value
measure of consumption
method of activation
musculi mentalis
nonprejudiced
offence against the law
palaeoimmunology
paludament
PCLI
permeabilizing
personal equity plan
planned annual profits
pleulcer syndrome
polka gauge
postcaval vein
potassium acetylide
power grid detector
Protacanthopterygii
radioassayed
rag week
raucaffricine
resistance capacity coupling
rewarewa
runcinated
serial arithmetical unit
shackleton ra.
sheep skin
single strut landing gear
spectral homology sequence
St. Anthony's cross
subarborescent
sudorification
support processor
tenth part
texture analysis
thiambutasinum
transaction system
transmitting converter
transmyometrial
triarc
truth value of proposition
Turk's stain
unpackers
unriper
virtual front time of a lightning impulse
welfare workers
wetting capacity
whipping cream cake
wild rosemary
winmaster
wrawling
yenny