石灰囊

How Birds Breathe 鸟是如何呼吸的 Y: Don, flying is tougher than walking or running, right? So how come birds dont get winded and run out of breath? D: Actually, in terms of distance per unit energy, flying is pretty efficient . Plus birds have

发表于:2019-02-16 / 阅读(52) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
a rolling stone gathers no moss
Aldm.
alkaline boilout
aminoethylpyrazole
amphibille
anomalocaris
anticipating
area function
azabicyclane
bar one
barecloth
car-transport vessel
cardiogenic syncope
character display
colono-fiberscopy
computation table
counted cards
cyberhacker
daguerrectype
damper of chimney
debasement of coinage
Draba sibirica
electro-plated pottery
entocondyles
envelope delay meter
equatorial rainforest climate
euthanased
family Certhiidae
fantastik
fleshette
for old times' sakes
fuel charging means
gaining ability
gay liberation movement
genus cotulas
giant silkworm moths
goerodes tanmounensis
green-ware
headmount
Hnls
hocevar
homoiousians
hugli
icing
icosahedral virion
instrumental segment
interracialisms
intersale
Jeongseon-gun
kill'd
left-half digit
leptomeninx externa
luminescence efficiency
macrophilin
marine flue boiler
maximum phase system
metallic transfer
minimum chi-squared method
mixture making
monetary multiplier
Morito
myristic aldehyde
Neodicumanin
nonconference carrier
nonprogrammers
packdrills
parallelogrammatic
pari-pinnate
parity of silver
personal communicator
pneumatic cutter
prosthomere
puttied
pyrite dross
raise a fresh scratch
resource optimum utilization
retractable capstan
satinised
sec.-butyl isovalerate
selendang
side-screen
single-row wheel
spring coupling catch
stagnant steam
standard deviation rate
stone-lily
sylvicola distinctus
syncretic case
tankproof
tenontoplasty
the above
the infernal regions
tightness of case
Ulcoban
unballassed
Waiotira
weather outlooks
whemmeling
Wimauma
You.
zero place function