时间:2019-01-22 作者:英语课 分类:自然百科2012年


英语课

 She chews its tail first, to make sure the fish can't get away. While the pups are still demanding milk, the mother otter 1 will often keep the whole fish for herself. Her pups are happy enough with caviar. 


 
As the flow becomes slow enough for the trout 2 to lay eggs, there is a brief window of opportunity to spawn 3 before the river gets too shallow to swim upstream. The female digs a trough with sinuous 4 flicks 5 of her body. And the attending male fertilizes 6 the eggs as they are laid. Millions of new lives. 
 
It's now early July. And what looks like more snow is actually a blizzard 7 of seeds and insects. There is more life in the park now than at
 
any other time of the year. It's a turning point in the summer. Through the coming month, the days will get hotter and drier. The plants will grow less vigorously, and the pace of summer will slow. 
 
The meadows are not so welcoming now. The grass becomes less nourishing as it puts its energy into seeds and roots.

n.水獭
  • The economists say the competition otter to the brink of extinction.经济学家们说,竞争把海獭推到了灭绝的边缘。
  • She collared my black wool coat with otter pelts.她把我的黑呢上衣镶上了水獭领。
n.鳟鱼;鲑鱼(属)
  • Thousands of young salmon and trout have been killed by the pollution.成千上万的鲑鱼和鳟鱼的鱼苗因污染而死亡。
  • We hooked a trout and had it for breakfast.我们钓了一条鳟鱼,早饭时吃了。
n.卵,产物,后代,结果;vt.产卵,种菌丝于,产生,造成;vi.产卵,大量生产
  • The fish were madly pushing their way upstream to spawn.鱼群为产卵而疯狂地向上游挤进。
  • These fish will lay spawn in about one month from now.这些鱼大约一个月内会产卵。
adj.蜿蜒的,迂回的
  • The river wound its sinuous way across the plain.这条河蜿蜒曲折地流过平原。
  • We moved along the sinuous gravel walks,with the great concourse of girls and boys.我们沿着曲折的石径,随着男孩女孩汇成的巨流一路走去。
(尤指用手指或手快速地)轻击( flick的第三人称单数 ); (用…)轻挥; (快速地)按开关; 向…笑了一下(或瞥了一眼等)
  • 'I shall see it on the flicks, I suppose.' “电影上总归看得见。” 来自英汉文学
  • Last night to the flicks. 昨晚看了场电影。 来自英汉文学
n.施肥( fertilize的名词复数 )v.施肥( fertilize的第三人称单数 )
  • The male sperm fertilizes the female egg. 雄性的精子使雌性的卵子受精。 来自辞典例句
  • When the male reproductive cell fertilizes the female reproductive cell a zygote is formed. 当男性生殖细胞与女性生殖细胞发生受精时,就形成了一个合子。 来自辞典例句
n.暴风雪
  • The blizzard struck while we were still on the mountain.我们还在山上的时候暴风雪就袭来了。
  • You'll have to stay here until the blizzard blows itself off.你得等暴风雪停了再走。
学英语单词
addrout file
aerobraked
aluminium alloy space frame
aluminum-manganese bronze propeller
anthropization
atomic emission
Atonin
balance date
built-up rotor
carrier frequency coupling device
cercospora violae
characteristic data of computer
Chelonopsis mollissima
christ-likest
concussion stunner
contact community
counter compound-wound motor
damage by mosture
deflector keel
DEHUM
designing process
dicysteines
Doon Point
dry delta
egg-cup
elongation at failure
emission spectrums
engineering test facility
epistemicists
fumaroli
glycerin foots
going to war
goulder
guntersville l.
gyri fasciolaris
hcteroliteral
heavy handled
Hennebique pile
Hintikka sets
honky tonks
Hoxha, Enver
i.g.
in area
indefinite adjective
iontophoresi
ISCOM
Kokand
land mark
loro account
made mountains of molehills
media-buying service
miasole
milled ring
Montmedy
morganfield
Muddy L.
Möng Yawn
N-acetylase
neurotropic drug
nonfaradaic current
nonparticularistic
nonpsychotics
overdraft protection
packaging board
packoff bushing
parasitic myocarditis
phyllanthus hookeri
pile the pressure on
polar arm
postmiotic
precipitation titration
prerequisites
racing cam
remote digital seismograph
repetition castings
root circle of toothed wheel
Rorippa atrovirens
rotor axial thrust
sand mould
scattering probability
second-quarter
self unloading wagon
separation manoeuver
shak
shreds
sludge drying
spell-bound
stimulated photon
STIQ
subsonic combat
supersonic working
syntonization
top hat shielding
true form
trump something up
turn inside out
univalency
universal test indicator
voltammetries
vortex flow sensor
wheat eelworms