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
a blogger
acetate hollow filament
air-sprayed
Anguifugan
anilide
antijapanese
apocrine cyst
barrister called within the bar
bi-statement ratios
butofilolol
cardiomyocytes
carradice
chemical process industry
Chinese francolin
commerce site
constant current feeding
cost outlay items
cotton tropicals
cowcumber
dechroming
delayed conditioning
deregulating
destination flag
drill fittings
ecologic tolerance
electroluminescent-photoconductor circuit
enclosed bridge
epithelitis
equatorial face
filter-virus
five speicies
fleahepper
frontal vesicle
fruchtschieste
gas refrigerator
glenheads
go-ahead run
guatamala
Gwai River
heat sensitive varnish
husklike
ice fogs
incision of abdomen
infantile palpitations
intra-uterine dislocation
jus strictum
liquid-solid interface ternary complex in seawater
lloyd-jones
load capacity of lubricant
magnetron vacuum gauge
maladaptation
Michelia coriacea
mobileless
Mogalo
Monteserrado Co.
mortar-cube test
multiple spark discharge
multiplicity reactivation (luria 1947)
mystifyings
nearest neighbor interpolation
noogy
oecs
ofuro
oversailing bricks
Parrya
path delay
pfister
phase to earth fault
Poa plurifolia
polarization diversity
premodel
range of values
reference standard reflected flux
refulgency
secondary wire crossfiring
self-locking wrench
semiconductor photo diode
sound transmission qualities
Sparagin
speech-language
stock obsolescence costs
stour r.
sulfurous fumarole
suspended chute
swap them
Swaziland monetary unit
synthetic-resin plastics
test for air-tightness
thromboangiitis
titanium alloy
tittivating
tone source
topflash
tryblioptychus cocconeiformis
trypsin-labile
undercut moulding
universal buffer-controller
unnoticing
valve-spring damper
water use ratio
yosimilon
You can't lose what never had.