时间:2019-01-05 作者:英语课 分类:自然百科2012年


英语课

 This pack seem prepared to allow their young a brief foray to experience the world beyond their den 1.


 
Even in Yellow Stone it is extremely rare to see wolf pups like this.
 
Before long they are summoned back into the forest by the pack. It will be winter before they are regularly seen again.
 
As May turns to June, Yellow Stone sees its nursery season. 
 
By early June, summer is finally here. In the flower meadows, plants turn sunlight into the sugar of nectar, and that's what Yellow Stone's smallest migrating bird has been waiting for. The Calliope Hummingbird 2 has made the journey all the way from Mexico. He’ll make this flower patch his own. And he’ll fight to defend it. He’ll even take on a far larger Rufous Hummingbird.

n.兽穴;秘密地方;安静的小房间,私室
  • There is a big fox den on the back hill.后山有一个很大的狐狸窝。
  • The only way to catch tiger cubs is to go into tiger's den.不入虎穴焉得虎子。
n.蜂鸟
  • The hummingbird perches on a twig of the hawthorn.小蜂鸟栖在山楂树枝上。
  • The hummingbird is the only bird that can fly backward.蜂鸟是唯一能倒退向后飞的鸟。
学英语单词
371
Amsterdam Treaty
antiangiogenics
attackee
attractive (-type) maglev
Bagac
Bagayevskiy
bialkowski
black bamboo
both dates inclusive
buffer spring seat
cerium(iii) benzoate
Charcot-Bouchard aneurysm
chattelization
Chelonidae
coil chain
commercializing human relations
control store literal
cosmeticology
counter gegen ion
CYK algorithm
dampened
decolourised
diol-lipid
DSML
elliot axle
eye relif
fan-shaped structure
feedc collet
finite difference theory
food raw material
format (in programming language)
galvanized pole steps
helicopter-landing
help somebody out
Homalomena
hotblooded
hydroxy-farreol
hypertrophic cicatrix
indo-hittite
infrared problem
landefeld
larrans
lee dune
leeched
letter of undertaking
light grey
locomotor rods
looking glass trees
m levator ani
maritime loans
mechanically mixed flux
med-evac
microframeworks
monolithic group
Morrill Act
MSCP
myoston
neutron generator tube
o'brian
Olching
open incineration
Orth's stain
Ozzies
pediococcus damnosus
pen-and-ink
petroleum industry tax
piriformis
pneumotonometry
pod-person
polytetrahedron
Portuguese man-of-war
pseudo-osteomalacia
pull-out hand brake
purple brood
purplish pinks
reading lesson
receive order
run train
salt diapir screened hydrocarbon reservoir
sampling moment
satirial
shifting board
specific lift
standard indenter
sudanese pounds
szilard-chalmer's method
takes long views
tasseled
temperedly
text part
theocons
timing of intervention
tin plague
topographic change
tuberculous scrofulosis
tubulin-S
various dates
weatherburn
work clock
yours truly
zinc lead accumulator