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(130) / 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(170) / 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(187) / 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(113) / 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(282) / 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(244) / 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(176) / 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(147) / 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(269) / 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

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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(418) / 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

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发表于:2019-02-16 / 阅读(170) / 评论(0) 分类 经济学人科技系列

Human evolution 人类进化史 You look familiar 似曾相识 Another piece of humanitys 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 Sep 10th 2011 | from the print edition THE opening scene

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学英语单词
a. perforans secunda
aacms
adolescently
alisphenoid canal
aneurysm clips
Ashkirk
asteroid zone
Basdahl
Beomeosa
bifoliolate
bootlegs
bottle-brush
Brooten
building file list
causeful
centre to centre distance
Cephalorhynchus
cobaltic luteo salt
confusional insanity
control eccentric
crepon finishing
critical
CRW
cylinder pile foundation
dads-in-law
degrandable system
diamond shaped knurling
differentiation circuit
disc cam
draughtswoman
Eastern Prov.
educational testing service
elfin forest
emplastic bougie
entrepreneurialize,entrepreneurialized
exsertion
fearscapes
ferroresonant power supply
friction igniter
glareth
glycerinated
goggle-eyed
grand central station
Hardenbergia comnptoniana
heavy and crude oil engine
horsehair gloves for massage
hydraulic cavitation
Hārij
Ilex corallina
information-poor
intertwining operators
iodochlorhydroxyquin
IRGTH
irreducible character
karengi (karenzi)
keep a record
kilowattage
Klosterlausnitz
koup
Lareactors
little-head snakeweeds
mobilegrease
Monogonta
most immediate
multilevel machine
nickel core
outdoored
papillae spiralis
parent-teachers
perturbation method
Pichia alcoholophila
piecrust pledge
plant hunter
polydipsia ebrioria
poor vision
pressure in money market
pseudo-witch
puckstoppers
quick loan
radio wave characteristics
Redunca
resting saliva
retrofitted
rotary gatherer
scores for sensitivity to iron chlorosis
secondary-electron
shaft piston compressor
shaker washer
soda-hornblende (arfvedsonite)
squatter camp
tank draft hole
temporary money
tensor contraction
thoracoabdominal combined war injury
timber support
Tracadie
traffic lane line
tree cricket
truckmakers
unconsolidated porous medium
utterf
vctoria do mearim