时间:2019-01-22 作者:英语课 分类:自然百科2011年


英语课

 They won’t be strong enough to challenge for females until they are five years old. Til that day, they will regularly hone their sparring skills. They will stay with the group until they mature. 


 
During the long winter chill, Lake Baikal transforms from a flat expanse into cut crystal. Movement across its huge surface ruptures 1 and shifts the ice layers. 
 
Adult seals spend the winter alone, mostly in the water. But come April, they will have some company. This pup is the first of the season to emerge. Weaning for Baikal seals is abrupt 2. The mother starves herself during the eight weeks of feeding the pup in the snow den 3, then she simply abandons it on the surface. 
 
Soon the icescape will be dotted with other emerging pups. Already this one is eager to explore its world. A layer of fat keeps it warm above and below the waterline, where icy cavens create a frozen paradise. 
 
But Siberia’s chilling reputation tells only half the story, the beauty as expansive as its borders and the diversity to rival any place on earth. This Russian land, mountains and lakes, forests and plains can only be described in a single surprising word--Siberia.

n.(体内组织等的)断裂( rupture的名词复数 );爆裂;疝气v.(使)破裂( rupture的第三人称单数 );(使体内组织等)断裂;使(友好关系)破裂;使绝交
  • Fault ruptures may consist of a single narrow main break. 断层破裂可能只包括单独一条狭窄的主裂隙。 来自辞典例句
  • The dry seed ruptures and the green leaf uncurls. 干瘪的种子裂开了,卷曲的绿叶伸展了。 来自辞典例句
adj.突然的,意外的;唐突的,鲁莽的
  • The river takes an abrupt bend to the west.这河突然向西转弯。
  • His abrupt reply hurt our feelings.他粗鲁的回答伤了我们的感情。
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。
学英语单词
actinosphaerium eichhorni
airborne fire control system
anti-diffusion difference scheme
ar-razi
Armenophilia
automatic train stopping device
best-efforts
bethulia
boessets
canonical reduction of matrix
Cape primrose
codebook method
condition equivalence
cord weight
creep feed ginder
diffusosphere
discoid capitulum
donelans
dynamic frequency dividers
education allowances
endophlebitis hepatica obliterans
entering judgment
expletive stone
export tax relief
fast-screen tube
Flechsig's tract
fracture parameters
Frederiksborg Amt
French braiding
fusiform cataract
gilson
grangerises
hamzated
handwriting
Hukawng V.
hydra-electric system
indefinite bone cyst
interceptor lead angle
Jacksontown
joint snake
joking
Kaapstad
keratinized tissue
lacworks
lamb feeding schedule
lay tracks
mAChR
Medical Records
Mepem
microdrepanocytic
motor plan
multilevel processing
mycorhiza
nebamuns
need potential
nonunder command light
organizing of programming team
Pacta sunt servanda.
paper disk
parietal lymph gland
pillar split
plantages
point something out
poly(1-octene)
price raising by grade
psychological therapeutics
Purtsche's disease
querying database
rda/onix framework for resource categorization
rotating spray
rubber tissue
s-nitrosothiols
schuderdtite
sekhets
series-field loss
shift of wind
singhiella tetrastigmae
skulking
Solomonids
sorption exhaust
steel bar stirrup bender
stocked car
Sub-Carpathian Rus
submorphous
subsonic (air) inlet
surface air observation
sutured contact
synchondrosis
syndication feed
tachometer
taolmethylose
terrestriality
thermal neutron capture
thlaspida biramosa
ulmus eilsoniana schneid.
unitary accounting system of national economy
valvula(valvule)
vapor bubble
wailish
wakeeney
warsame
what if i told you