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(49) / 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(54) / 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(52) / 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(62) / 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(52) / 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(52) / 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(73) / 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(87) / 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(103) / 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(62) / 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(61) / 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(65) / 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(69) / 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(55) / 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(42) / 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(44) / 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(88) / 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(60) / 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(54) / 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(87) / 评论(0) 分类 英语听力精选进阶版
学英语单词
All is well that ends well
almightihede
Ammoket
androgen insensitivity
antipest sera
apophenic
arch-center
assembly bolt
attracting fish lamp
ballet shoe
baritone hornist
basal cells
be prejudiced against
bearing for screw conveyer
bio-rhythms
block accounts
bucketload
bulge ore carrier
Bulmers
buoyant equilibrium
Carresse-Cassaber
chikungunya
circoid
clifflike
comigration
course of event
Cranberry Lake
discharge measurement
doual
dysesthesia tester
fibers. Korff's
firebrands
flowline guide funnel
foreign exchange official rate
Forstner bit
gortat
gotten through to
gudmundsson
Harmonized Description Coding System
higher order goods
Hussein
Hyalospongea
hygrophylline
income-generating
instils
instruction-oriented algorithm
interdigited bipolar transistor
jamye
juice mixer
juvenency
kick ahead
kinzer
lattice keratitis
Lea Lea
ledger card
Lemnians
liebows
like a hog on ice
livescanning
lymphonoduli aggregati (intestini coli)
Manglietia insignis
meta-searching
metalacyclic
Mississippi College
naked-tailed
nationalism
Niani
non retentive material
not worth a plack
offset right
oil fuel pumping unit
ole-talk
particular kind
pent-house apartment
permissible application rate of sprinkler irrigation
phlox subulatas
profile shifted gears for cylindrical worm gear
salvatores
schema declaration
shack fever
ship's class
shipward
software pirate
Ste-Foy-la-Grande
Stephan Str.
sumisho
target speed setter
teacher-in-training
test run
tff
time-variable gain
Tinharé, I.de
to set the table
toepieces
transformer sheet
trung
unrestricted submarine warfare
value on
waddingham
Which one would you like
wideband demodulator
wilmerding