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
1-fluorohexane
agitation
air film
ash whip
Asianizations
audible frequency
Bakewell Pudding
banaz r.
be sent on a fool's errand
belted plain
bounded metric
Brovan
bullous ichthyosiform hyperkeratosis
can't go wrong
career transition
celozoic
chemical ion pump
chinese pea trees
clonal test
commemorator
compensated foundation
conodonts
cumulative sum chart
cynodontium gracilescens
d'hotel
datum drag
dihexagonal-prism
dinkel wheat
Dittrich's plugs
ductus perilymphacei
end seizing
enzyme hydrolysis
equivalence value
error log table
expiscations
flushboard
foilborne operation
Gambia River
glirarium
haggled
high-erpriority item
historiosophically
humpback salmon
i couldn't agree more
intermediate supraclavicular nerve
involute wheel tooth
jarldom
jeopardied
job content
john hasbrouck van vlecks
located alert
make no mistake (about)
mammotomies
master course
mechanical clock
monaxial class
monoradical
mouse-clicks
multipintle rudder
nutritional labeling
offspin
Old World scops owl
orbital overlap
overnight liquidity assistance
partner relation
pay-cut
philip-augustus
pocket mice
pray TV
present value of income from investment
press-radio bureau
protag
radoes
residual error
San Pedro del Arroyo
seismic profiler
selfrelease
semg
semiwave
send later
skinning machine
sky simulator
Staupitz, Johann von
structure of consumer demand
sue-ellen
supramesocolic
swallowe
Swanlake
table of drawings
tail radius of crane
tatins
tax loss
thymolalcohol
Tiffany, Charles Lewis
trabectome
transfer form
triebelina chuchihia
urine pH
velocity-area method
wax simulation
welcomeless
wildcat sprocket