时间:2019-02-03 作者:英语课 分类:自然百科2012年


英语课

 So in some ways, a voyage to Mars could be a voyage home. Our ancestors have made such bold trips before when we walked out of Africa, when we sailed over the horizon. If it is technically 1 possible, our ships will head out again. 


 
We always want to see what is over the next hill, and Mars is that next over the hill。Sure, you are going to have to be in a suit, you are going to have to have a habitat, but it’s a solid planet, it’s(=it has) got a surface, you can see, you can work, you can explore. 
 
I suffer about 30 years and now that we could go to Mars, and usually when people ask me how long it will take, I say 15 years because we have been saying 15 years for the last about 4 decades. 
 
Our human mission to Mars can happen soon enough for me. I’m, You know I am, I am a robot guy. Ok, that is what I do in my career, / build robots and send them to Mars. But I also think that we send things to Mars for reasons other than science. Our rovers, Spirit and Opportunity, were built by people who like me, grew up in the 60s, watching Mercury Gemini Apollo on TV as little kids are dreaming of sending spaceship to Mars some day and now we do. And I think as people watch the first human explore on surface of Mars, they are going to be similarly inspired to do things that I can’t imagine at this point. It is going to be very costly 2, it is going to be dangerous, but I think it is something I like to see happen. I ‘d love to see footprints in our real tracks, I would love to see footprints on Mars. 
 
When the first human footprint is made on Mars, it will represent more than a giant stride into space. This one small impression will be proof that humanity is once again on the move. Travelers once more moving beyond our comfort zone to explore new lands and new opportunities, and have no doubt there are many world out there, ride for exploration.

adv.专门地,技术上地
  • Technically it is the most advanced equipment ever.从技术上说,这是最先进的设备。
  • The tomato is technically a fruit,although it is eaten as a vegetable.严格地说,西红柿是一种水果,尽管它是当作蔬菜吃的。
adj.昂贵的,价值高的,豪华的
  • It must be very costly to keep up a house like this.维修这么一幢房子一定很昂贵。
  • This dictionary is very useful,only it is a bit costly.这本词典很有用,左不过贵了些。
学英语单词
abundaries
accordion conveyer
acid carboy inclinator
angry boys
anhydrous ammonia
apou
artemev
atrichopogon argus
autophytography
batch (-like) process
be more than a match for someone
bramcote
branch and linkage
bronze medal
bruttest
carrying capacity of turbine
centre line camber
chest with diagonal joint steam
Clarence Cannon National Wildlife Refuge
cold drying
composite geometrical section
compotations
compression shrinkage
computer peripheral equipment
connection machine
cryostasis
cryptonephridic
degloves
delva
Discounted basis
Doppler navigation computer
electroencephaloscope
exit concentration
fasciolatum
fentanyl
fiber volume fraction
flame-jet drilling
foramen coecum
fragrancy pork in Zhenjiang style
fresst
gangrenous balanitis
gushier
hand dominance
hemikryptophyta repentia
high potential
hopkinsiaxanthin
hosen
hybrid process
ice-free
incompleteness theory
indirect DC convertor
integrated tool
kapaa
KILLER APP
kokusaginine
l-phenyl-2-aminopropane
low-frequency impedance corrector
magnesite chrome refractory
Mainburg
matrix theorem
micro mouse
noncontacting switch
old land
oral membrane
orthomniopsis japonica broth
oversimplifying
oxidative aging
Pallasovskiy Rayon
peripterous
pisanoes
polycollinear
primary silver
primitive accumulation of capital
pulse-count converter
pyrophobes
ray crossing
redate
reduced form method
reference count
Salisulfa
sergino
seven-level screwdriver
simply connected Riemann surface
single-factors
sinter mixture
sonorosity
spectrumprediction
spray driy porcine plasma
sprocket winch
superior limit (upper limit)
takeup pulley
teachably
tensile viscosity of film melt
till crevasse filling
tout for
ugvs
ultimata
unconditionally divergent series
unshaped refractory
uterine croup
washed stock
Wuchernde