音标:[,hɔmәu'sә:kl] ;
a. (鱼的)正型的
a possessing a symmetrical tail that extends beyond the end of the vertebral column (as in most bony fishes)

homocercal的用法和样例:

词汇搭配

  • homocercal tail正尾
【反义词】

In June, the Oxford English Dictionary, or OED added about 1,000 words and new definitions to its website. The changes are to help users understand a mix of terms, some dating back many centuries. The additions include words such as brencheese deaths

发表于:2018-12-08 / 阅读(191) / 评论(0) 分类 2018年VOA慢速英语(六)月

Broadcast: Jan 17, 2003 At the unveiling of the First Europeans exhibit, Ellen Futter, president of the American Museum of Natural History, offered reporters, 1) anthropologists and other scientists a

发表于:2018-12-08 / 阅读(233) / 评论(0) 分类 VOA2003(上)-科技先知

Study: Neanderthals Were Artists Some of the worlds oldest cave art is too old to have been made by modern humans, researchers say. Studies suggest that Neanderthals were responsible for creating cave drawings found in modern-day Spain. They also app

发表于:2018-12-18 / 阅读(247) / 评论(0) 分类 2018年VOA慢速英语(二)月

(WA-LC) Well, if there are no more questions I would like to continue our discussion of human evolution by looking at Homo erectus, the earliest of our ancestors who stood upright. Homo erectus lived about one and a half million years ago and was gi

发表于:2018-12-30 / 阅读(160) / 评论(0) 分类 托福听力短文

I don't want any hassles with the fuzz. hassle:麻烦 fuzz:[美俚]警察 我可不想跟条子发生口角。 -Howard:Fine, what color do you want? 好吧,你想要什么颜色? -Sheldon:You know the pale blue of Luke Skywalker's Lightsa

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00:00:02 OPRAH WINFREY: Hattie Mae, this child is gifted, and I heard that enough that I started to believe it. 00:00:08 ROGER BANNISTER: If you have the opportunity, not a perfect opportunity, and you don't take it, you may never have another chance

发表于:2019-01-03 / 阅读(348) / 评论(0) 分类 2017年VOA慢速英语(十一)月

'Human' Remains Found in Ethiopia Said to Be Up to Four Million Years Old 埃塞俄比亚发现四百万年前人类遗迹 The team of scientists from the Cleveland , Ohio Museum of Natural History re

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I Icariin 淫羊藿甙 Imperatorin 殴前胡素 Indigo 靛蓝 Indirubin 靛玉红 Inokosterone 牛膝甾酮 Insularine 岛藤碱 Insulin 胰岛素 Inulicin 旋覆花内酯 Iosmatrine 异苦参碱 Isoa

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H Harmaline 骆驼蓬碱 Harmalol 去甲骆驼蓬碱,骆驼蓬酚 Harmine 哈尔明碱 Harringtonine 三尖杉酯碱 Hawthorne Berry P.E 山楂果提取物 Hawthorne leaf P.E 山楂叶提取物 Haya

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The Chinese offshore oil corporation known as CNOOC has abandoned its bid for UNOCAL. This would have been the largest-ever purchase of an American company by a Chinese firm. CNOOC had put forth a bid that was higher than the competing bid from US o

发表于:2019-01-08 / 阅读(317) / 评论(0) 分类 2005年NPR美国国家公共电台

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Faith Lapidus. VOICE TWO: And I'm Steve Ember. This week, we will tell how a discovery in Kenya has started a scientific debate about early human ancestors. We also will tell how peo

发表于:2019-01-11 / 阅读(244) / 评论(0) 分类 VOA慢速英语2007年(九)月

New Species Might be Human Ancestor Fossils found in a South African cave might belong to a new species of early humans that holds a unique place on the evolutionary road to modern man. On a 2008 mapping expedition in Malapa, South Africa, American p

发表于:2019-01-13 / 阅读(203) / 评论(0) 分类 VOA标准英语2011年(九月)

By Carol Pearson Washington 03 July 2007 A second cervical cancer vaccine has passed a key clinical trial and its maker is seeking to use the vaccine in countries around the world. As VOA's Carol Pearson reports, more women may be able to use this ne

发表于:2019-01-16 / 阅读(321) / 评论(0) 分类 2007年VOA标准英语(七月)

Science and Technology 科技 Human evolution 人类进化史 You look familiar 似曾相识 Another piece of humanity's family tree is fitted into place 南方古猿sediba的发现填补了人类家族谱系的关键空白 THE opening scene of Mel B

发表于:2019-01-26 / 阅读(201) / 评论(0) 分类 经济学人科技系列

Hobbit Ancestor Bones Found 霍比特人祖先的骨头 Small human-like creatures lived in Indonesia 50,000 years ago, and a recent study found evidence of their much older ancestors. Scientists working in Indonesia say they found several teeth and

发表于:2019-02-12 / 阅读(514) / 评论(0) 分类 2016年VOA慢速英语(七)月

Science and technology 科学技术 Human evolution 人类的进化 You look familiar 你,似曾相识 Another piece of humanity's family tree is fitted into place 确定另一支人类谱系 THE opening scene of Mel Brooks's film History of the Wo

发表于:2019-02-16 / 阅读(234) / 评论(0) 分类 经济学人科技系列

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发表于:2019-02-16 / 阅读(226) / 评论(0) 分类 经济学人科技系列

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发表于:2019-02-17 / 阅读(273) / 评论(0) 分类 经济学人综合

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学英语单词
a hair's breadth
ACABQ
agar glant
aquatic vascular bundle plant
archaiokaulom
arschinowite
axial surface current
bath heater
bomohs
boreman
bus-in signal
chlorotriazines
claims settlement fund
clinoidale
cockbulge
cohumulone
columnar crystallization
come of scot free
confined compressive strength
crankshaft axis
cultural boundary
Cynanchum fordii
development of characters
dicodeine
Dionaea muscipula
division pteridophytas
doxsey
dreamwalked
edge-vertex dual
Ehrlich side chain theory
electrocardiosignal
flirtship
forfeiture of contribution
frigidity
fuel component
GaAs FET
Gaussian law of error
genus pythons
Haardt Mountains
hands, imposition of
hontz
hyper-Raman gain
hyperexpressed
ice patrol service
isoosmotic solution
Japanese rice ball
Kelvin theorem
keyway planer
liberated gas
lig-
light ballasts
local diagnosis
lower middle part of forehead
many particle wave equation
meager set
microtomist
middle digital branch
mouse cage
octyndioic acid
off the track
oil hose davit
outbraves
paren
parlimentarian
pay forfeit money
periodic payment
petroleum refining furnace
phonatory organ
pilomotor reflexes
plectrons
preterit(e)present
price out of the market
progressive mean
pulper-finisher
pyonephritis
quasi-chemical method
radioreceptor-assay
rectifier station
recycle ratio
Sakishima
scale of pollution
spermatic fascia
spin control
steering stress
straight ligament
surface conductance
tambouki grass
teflon insulated wire
thermoluminescent medium
three-layer mineral
timocratic
tincalcite
torsional braid analysis apparatus
transitivity of preference
transportation problem
tropified
unethe
unilingually
us dominance
welding lead
wet critical
Yinchin Taung