音标:[krʌs'teɪʃnz] ;
n. 甲壳纲动物(如蟹、龙虾)( crustacean的复数形式 )
n. any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton

crustaceans的用法和样例:

例句

  1. The following diseases of crustaceans are listed by the OIE.世界动物卫生组织列出的甲壳类动物疾病。
  2. They also chose to eat crustaceans and drink of dolphin-whale blood in the physical.他们也选择在物质层上进食甲壳类动物并饮用海豚鲸鱼的血液。

And now to our NewsHour Shares. Seawalls help to protect developed shorelines, but they can also destroy crucial habitat. One project in Washington state aims to fix that. Ken Christensen of KCTS' EarthFix explains. The Seattle waterfront is changing

发表于:2018-12-05 / 阅读(55) / 评论(0) 分类 PBS访谈环境系列

Huge though bergs may be, they are nonetheless usually on the move. But come the winter, sea ice forms around them and locks them solid. As winter progresses, so more and more of the sea freezes, spre

发表于:2018-12-07 / 阅读(60) / 评论(0) 分类 冰雪童话

Great Barrier Reef Choking on Pollutants 大堡礁遭遇前所未有的污染 Attempts to protect the Great Barrier Reef are failing. A report released Monday by the government in Australia says water quality in the Great Barrier Reef is far below wh

发表于:2018-12-16 / 阅读(57) / 评论(0) 分类 2015年VOA慢速英语(十)月

Volunteers Keep Hands-On Science Alive in US Classrooms When it comes to making science fun, Lisa Purcell is a pro. Mimicking an owl or a foraging squirrel is all in a day's work for the director of the Four Winds Nature Institute. On this particular

发表于:2018-12-16 / 阅读(71) / 评论(0) 分类 VOA标准英语2011年(五月)

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. How do baby coral find a new home in the open ocean? They listenvery closelyfor reef sounds. Scientists at the University of Bristol in England had alrea

发表于:2018-12-24 / 阅读(57) / 评论(0) 分类 Scientific American(五)月

世界上有很多景点、物品都是以名人来命名的,你知道的有几个呢? Neil: Hello and welcome to 6 Minute English, the programme in which we discuss something from the news and teach you a few useful words and phrases on the way!

发表于:2018-12-27 / 阅读(59) / 评论(0) 分类 一起听英语

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(86) / 评论(0) 分类 国家地理2008年

Neil: Hello and welcome to 6 Minute English, the programme in which we discuss something from the news and teach you a few useful words and phrases on the way! Im Neil and joining me today is Rosie. Hi Rosie. Rosie: Hi Neil. Neil: Weve got a story ab

发表于:2019-01-07 / 阅读(98) / 评论(0) 分类 六分钟英语

1. Authorities in New York say they've disrupted a terror plot that could have caused unthinkable devastation. Three people are under arrest with investigators looking for a fourth. The plot targeted the pipeline network feeding jet fuel to Kennedy

发表于:2019-01-08 / 阅读(108) / 评论(0) 分类 美联社新闻一分钟2007

RACHEL MARTIN, HOST: OK. We're switching gears now over to Berlin, where there is a strange invasion of Louisiana crayfish. The problem reportedly stems from some Berlin residents who bought the fish as pets, only later to dump them in public waters.

发表于:2019-01-11 / 阅读(70) / 评论(0) 分类 2018年NPR美国国家公共电台8月

It resembles the blob from science fiction stories, but it's very real. These jell-like sheets of disease-carrying mucus are spreading across portions of the Mediterranean and Adriatic Sea, where this video was taken. This stringy mass is known as ma

发表于:2019-01-22 / 阅读(68) / 评论(0) 分类 自然百科2009年

The Census of Marine Life has released the most comprehensive inventory life in the ocean today. Its an unprecedented database of marine species living in 25 key ocean areas around the world. The findings published in the open access scientific journ

发表于:2019-01-22 / 阅读(71) / 评论(0) 分类 自然百科2010年

They are mini-masterpieces, built with microscopic elegance, the small and hard-to-see life of the sea, microbes, larvae, burrowers, and they've been photographed and catalogued as part of a massive marine collaboration of scientists from across the

发表于:2019-01-22 / 阅读(78) / 评论(0) 分类 自然百科2010年

Lionfish are taking over coral reefs in the Caribbean and Atlantic. Here, Lad Akins catches one. In the waters of the Caribbean Sea, a voracious invasive species called the lionfish is threatening to overtake the reefs. Conservation groups are fighti

发表于:2019-01-31 / 阅读(65) / 评论(0) 分类 VOA标准英语2010年(七)月

As efforts to try to cap the oil well that has poured millions of gallons of crude into the Gulf of Mexico faltered Saturday, we took a tour of the vast ecosystem along Louisiana coast for a first hand look at what is at stake. The Louisiana coastlin

发表于:2019-02-03 / 阅读(51) / 评论(0) 分类 VOA标准英语2010年(五)月

Forget Nessie: there's another insidious creature living in the waters of Scotland. The story starts in the streams and lakes of the northwestern United States, where North American signal crayfish are a familiar sight. Turn over a rock and you may w

发表于:2019-02-07 / 阅读(49) / 评论(0) 分类 英语新闻

Dismounting to assist her, Walcott discovered that the horse had turned a slab of shale that contained fossil crustaceans of an especially ancient and unusual type. 沃尔科特跳下马来扶她,却发现马将一块页岩圈了个身。页岩里有

发表于:2019-02-17 / 阅读(96) / 评论(0) 分类 万物简史

As a boy Walcott discovered that he had a knack for finding fossils, particularly trilobites, 沃尔科特还是个孩子的时候就发现自己具有寻找化石的本领,尤其是三叶虫。 and built up a collection of sufficient distinction t

发表于:2019-02-17 / 阅读(68) / 评论(0) 分类 万物简史

UK-based scientists are reporting the discovery of more than a hundred new species of marine plants and animals, including thirteen new crustaceans, as part of a deep-sea survey around the British territory of Bermuda in the Atlantic. CRI's Niu Hongl

发表于:2019-02-22 / 阅读(62) / 评论(0) 分类 2018CRI中国国际广播电台

The Sunni uprising in Iraq led by the Islamist extremist group ISIS is continuing with uncontested gains in the eastern province of Diyala where there is a Sunni majority. The insurgents say they will move on to Baghdad. This comes as fears grow amon

发表于:2019-03-04 / 阅读(93) / 评论(0) 分类 英语听力精选进阶版
学英语单词
adaptive-optics
additional commitment
amorphous phase
analog sound
anaphorically
annalized
antirevolution
arrow root starch
Atlas rocket
Bannesdorf auf Fehmarn
binder modification
braine le comte
callback
Candin
cantral terminal unit
cash ratio deposits
Cassoalala
circulation integral
collection service
continuing professional education (cpe)
continuous string
convolute mineralization
cubic-lattice cell
differents
dining-table
dioxygens
drp
easy bilge
elasto-plastic system
Federal Islamic Republic of the Comoros
final periods
fireband
formed stool
garbage trucks
Geesteren
give it another brush
greenish-grey
Hemerocallis forrestii
heparphosphotides
hexagonal-close-packed
Hochkalter
hoof-pick
hourglass curve
Imidazolo-2-Idrossibenzoate
induplication
infiltration tunnel
International Meeting of Marine Radio Aids to Navigation
Joliet, Louis
juvenile sulfur
kachang puteh
Kyaikpi
Lhenice
lifting and moving equipment
long hundred
Luchki
made for life
maquiladoras
Mary Queen of Scots
megaton bomb
metering characteristic of nozzle
mixed mode
modulation reference level
moneyhatting
NATO phonetic alphabet
nested scope
nonnarcotics
olpc
Phosphor Bronze Strip
physical distance measuring
postgena
premires
Processing loss
pyloric stenosis
queueing network model
rapid growths
re-activating
redundant recording
reheat steam conditions
right elevation
Roig, C.
rosenstiel
Rubus mesogaeus
san juan de camarones
sedentary polychaete
shikimic acid
standard specific volume
Staphylininae
sterile food
sweet basils
swing tow
temperature - sensitive mutant
the furies
top-blown
turnover ratio of accounts payable
uninstructively
united parcel service
water-stage transmitter
wax-bill
white firs
Wirrega
yellow-backeds
youthward