na. 【动】有尖硬鳍的
[网络] 棘刺

雷蒙·斯尼奇的不幸历险 第一集 The Bad Beginning第2课

发表于:2018-12-06 / 阅读(150) / 评论(0) 分类 雷蒙.斯尼奇的不幸历险

The waves of these azure seas hide an abundant treasure. Below the waves, coral reefs provide a habitat for teeming life, a life with a kaleidoscope of color. In oceans around the world, clear and well-circulating waters encourage corals to anchor a

发表于:2018-12-30 / 阅读(133) / 评论(0) 分类 国家地理2008年

Lesson 79 The Prickly Hedgehog 第79课 扎人的刺猬 The hedgehog is a common animal in every part of Great Britain where he can find suitable food and lodgings . We can easily see how he has got his name. He is often found at the bottom of our he

发表于:2019-01-01 / 阅读(167) / 评论(0) 分类 英国学生科学读本

About 110 million years ago, a large plant-eating dinosaur covered with sharp points walked the land. Called a nodosaur, it is now the best example of its kind ever found. This new species of dinosaur is being called a one-in-a-billion discovery. Rec

发表于:2019-01-02 / 阅读(138) / 评论(0) 分类 2017年VOA慢速英语(五)月

China's appetite for lobsters is continuing to rise, driving imports from the US to a historic high. 中国人对龙虾的需求正持续增长,推动从美国进口的龙虾总量创下历史新高。 Most Chinese had barely heard of American lobs

发表于:2019-01-07 / 阅读(379) / 评论(0) 分类 英语新闻

Plants that use animals to disperse their seeds can find themselves in a pickle. Their need to make fruit tasty enough to entice the local fauna, but they also need to make sure that their animal assistants don't digest the very seeds they are meant

发表于:2019-01-08 / 阅读(159) / 评论(0) 分类 Scientific American(六)月

Plants that use animals to disperse their seeds can find themselves in a pickle: They need to make fruit tasty enough to entice the local fauna, but they also need to make sure that their animal asssistants don't digest the very seeds that are meant

发表于:2019-01-08 / 阅读(151) / 评论(0) 分类 Scientific American(六)月

206. The spinal cord operation脊髓手术 spectra-sponge There was a lecture given at a medical school on a spinal cord operation. The professor began: In order to have a speedy but safe operation, one must speculate on the entire spectrum of possib

发表于:2019-01-08 / 阅读(104) / 评论(0) 分类 胡敏托福词汇记单词

Interactive Junior Botanist Program Teaches Kids About Plants WASHINGTON Lee Coykendall teaches students from nearby Virginia all about the Theobroma cacao - the source of chocolate. This tree will have 30-40 pods, and inside, look! she exclaimed und

发表于:2019-01-14 / 阅读(114) / 评论(0) 分类 VOA标准英语2014年(八月)

In the waters of Andaman Sea, off the coast of Miyama, a group of sea nomads has made their life among these remote islands for centuries, known as the Moken. Their origins are mysterious. The Moken's extraordinary ability to reap the bounty of the s

发表于:2019-01-22 / 阅读(137) / 评论(0) 分类 自然百科2010年

His questions were different now, though, not as easily answered. 不过,他现在的问题变得不一样了,不再那么容易回答了。 He wanted to know what I missed about home, insisting on descriptions of anything he wasn't familiar with

发表于:2019-01-22 / 阅读(114) / 评论(0) 分类 暮光之城•暮色

By Paula Wolfson Merida, Mexico 14 March 2007 President Bush spent Tuesday highlighting U.S. ties with Mexico, and his desire to find common ground on the controversial issue of immigration. VOA's Paula Wolfson reports from Merida - the last stop on

发表于:2019-01-31 / 阅读(145) / 评论(0) 分类 2007年VOA标准英语(三月)

Boat Noise Means Fish Can't Learn Their Lessons If you've ever gone snorkeling or scuba divingyou know how peaceful it sounds under there... aside from the crackling sound of snapping shrimp. 你如果浮潜或者潜过水,就会知道水下听起来

发表于:2019-02-14 / 阅读(102) / 评论(0) 分类 2018年科学美国人3月

An excitable conchologist would surely have fainted dead away before other, more numerous glass cases in which were classified specimens from the mollusk branch. 一位神经稍微锐敏一点的贝壳类专家,到了另一些陈列软体类动物标

发表于:2019-02-17 / 阅读(102) / 评论(0) 分类 《海底两万里》中英双语有声读物

After enduring everything the Sahara has thrown at me,i desperately needed rest. 在撒哈拉遇到一系列挑战后 我真的需要休息一下了 While I had some sleep,it just never feels enough. 虽然我昨晚休息过了 但远远不够 A very

发表于:2019-03-01 / 阅读(148) / 评论(0) 分类 荒野求生
学英语单词
academic background
aciculiform
acute urticaria
Adaphol
Aeolia
after heat
albumenoid
antimension, antimensium
antiup
armature residual gap
arteriographies
asterolampra marylandica
aviation insurace
bean-goose
belt of weathering
blinkled
bootable CD-ROM
bovine spongiform encephalopathy (bse)
bride-cakes
broadcast homes
calfornia
catastaltica
channel of retreat
clamp opening
cold-hardening synthetic resin
condition race
decay heat
dermal cell
diethyl carbamazine
discharge velocity triangle
dortmund beer
earthworm dejection structure
energy valley
equipoised
eurogames
exception routine
expirationnotice
fatigue breakdown
feeb
foley stage
Foucault test
Four Masters of the Yuan dynasty
guitarfishes
hantzschia marina
Hexastylus
hot and cold
hvac
hyphenise
immunologically activated cell
jay-hawker
knifing socket
local improvement tax
lymphonoduli
macrencephalic
maingenerator
maturity of obligation
mauling
meiths
micromelaniid
milincic
Mlicrococcus varians
Mononegavirales
morphoea
move in a groove
natural membranes
ndh
nested deletion
neutral-tone
nutrient artery of femur
onion smudge
organic builder
pas jet?
pharyngeal bulb
phellogenic
pitching into
pluripotency,multipotency
plus-sizest
porcari
Port-Vendres
post completion audit
prelighted
primary auxiliary building
Prince's metal
process implementation
pulmonary plexes
pylocheles (bathycheles) incisus
Razgon
relict community
resting mammary gland
right-hand thread tap
scale-like
silicyne
spectral output
symphonic ballets
the thread of life
transverse cervical vein
uncalmed
unwhacked
Wilts
Winston Glacier
withwent