时间:2019-02-23 作者:英语课 分类:英语时差8,16


英语课

The four species of piranha that are carnivorous, however, certainly earn their reputation as fierce fish. These meat-eaters have powerful jaws 1 and razor sharp teeth that fit together like cutting shears 2 when they bite. Piranha travel and hunt in schools of about twenty fish, and can engage in impressive feeding frenzies 3 when aroused by blood or commotion 4 in the water. Carnivorous piranha will eat anything from other fish to large mammals such as cows and even jaguars 5 that wander too far into the water. Although flesh-eating piranhas sometimes attack people, humans tend to have the last laugh. In South America and elsewhere piranha are considered fine eating fish. It’s safe to say that many more piranha are eaten by people than the other way around.



n.口部;嘴
  • The antelope could not escape the crocodile's gaping jaws. 那只羚羊无法从鱷鱼张开的大口中逃脱。
  • The scored jaws of a vise help it bite the work. 台钳上有刻痕的虎钳牙帮助它紧咬住工件。
n.大剪刀
  • These garden shears are lightweight and easy to use.这些园丁剪刀又轻又好用。
  • With a few quick snips of the shears he pruned the bush.他用大剪刀几下子就把灌木给修剪好了。
狂乱( frenzy的名词复数 ); 极度的激动
n.骚动,动乱
  • They made a commotion by yelling at each other in the theatre.他们在剧院里相互争吵,引起了一阵骚乱。
  • Suddenly the whole street was in commotion.突然间,整条街道变得一片混乱。
n.(中、南美洲的)美洲虎( jaguar的名词复数 )
  • Jaguars are largely nocturnal creatures. 美洲虎基本上是夜行动物。 来自辞典例句
  • Jaguars (Panthera onca) once ranged from southern South America to theUnited States. 美洲虎曾经分布在北美洲南部和美洲南部。 来自互联网
学英语单词
2-Mercaptophenylimidazole
a jug
abso-bloody-lutely
active file directory
air transportation system
Aiviekste
Alcubierre metrics
an important step in varietal improvement
angular position pick up
antihorse
arkes
automatic video delay
aversenesses
base resource units
be sb's man
bistable state
cease-and-desist
Cereus divaricatus
Chainsk
chickweed
Coligni
computer center
control system
cyberconversations
distilled lime oil
divergens
emergency breakaway tools
eynde
farm-hands
from minute to minute
genitor
glomus macrocarpum
goose-web wind
Grado, Embalse del
gravity-force
heat function
heat(ing) value
hereditaryonycho-osteodysplasia
high flowability
high-kickings
homing station
host to host
hybrid opto-receiver
ice-hockey
IEA (International Energy Agency)
isotonic saline
kitting out
kopechne
Küttigen
lanz
large punch
lepiota fusciceps
leukocratic
liberal-democracies
low potent genes
majnu
Matese, L.del
message form
metacercaria
Miniatine
monkey on your back
Nelson House
night sky spectrograph
nonconclusion
Omaine
out the ying yang
Pasidoi
paving thickness
plate grid capacitance
pole-smoker
procetane
range scope
rearing
recds
regulation of markets
relapsingremitting
rheocardiographic
salubrities
scattered area
secondary hyperthyroidism
septs
sexual progeny
ship type tractor
sniegoski
Solanaceae alkaloids
sour-grapiness
start-up sequence
stationary growth phase
steady-state regulation
survey monuments
the american national standards institute's version of cobol
thermal pulse
thin bed technique
throat diameter
valves and fittings
venturi apparatus
vertebrate zoology
video-assisted
Viennese horns
wire cutting pliers
working off
Zozlān