音标:[si'trʌli:n] ;
n. 瓜氨酸
[化] 瓜氨酸
n. an amino acid that does not occur in proteins but is an intermediate in the conversion of ornithine to arginine
词型变化:名词复数形式 : citrullines

EXPLORATIONS - Children's Press Line By Karen Leggett Broadcast: Wednesday, October 27, 2004 (MUSIC) VOICE ONE: This is Faith Lapidus. VOICE TWO: And this is Steve Ember with Explorations in VOA Speci

发表于:2018-12-15 / 阅读(125) / 评论(0) 分类 Explorations

箫华,我的一个朋友刚才打电话来说她心情不好。她怎么了?是忧郁症吗?不是,她开的咖啡店生意惨淡,三个星期来一直赔钱,这样下去,她的生意很危险,弄不好就要关门了。 噢,用一个

发表于:2018-12-16 / 阅读(144) / 评论(0) 分类 美国习惯用语

Now, its time for the VOA Learning English program, Words and Their Stories. On this show, we talk about common, expressions in American English. Today, we will talk about the word line. Line is a simple, four-letter word, but it has many meanings, m

发表于:2019-01-02 / 阅读(159) / 评论(0) 分类 2017年VOA慢速英语(三)月

By Mil Arcega Washington, DC 21 December 2006 watch UK OnLine Shopping Britain's leading e-commerce industry group says the UK has overtaken the United States in the growth of on-line shopping. The Interactive Media in Retail Group, or IMRG, says on

发表于:2019-01-06 / 阅读(147) / 评论(0) 分类 2006年VOA标准英语(十二月)

我听之我见: 西方评论界认为,若再找出一座石山,将美国现代音乐界的四位开国元勋头像雕刻上去,那么Johnny Cash必是其中之一。Johnny Cash是影响美国近代乡村、流行、摇滚与民谣界最重要的创作歌手之一,他以浑厚而深沉的 Lyrics I walk the line By Johnny Cash I k

发表于:2019-01-06 / 阅读(184) / 评论(0) 分类 音乐咖啡厅

By Greg Flakus Houston 26 January 2006 This week thousands of movie directors, writers, actors and Hollywood executives are huddled together in the ski resort town of Park City, Utah attending two ind

发表于:2019-01-09 / 阅读(163) / 评论(0) 分类 2006年VOA标准英语(一月)

A: Were you able to get a look at the suspect's face? B: Yes. I know exactly what he looks like. A: I must ask you to pick him out of a line-up. B: That won't be a problem. A: Look closely at the five men in this line-up. B: I am looking. A: Do you s

发表于:2019-01-11 / 阅读(129) / 评论(0) 分类 英语情景对话-犯罪

By Matt Steinglass Hanoi 11 December 2007 Vietnam has been holding four Vietnamese-born American citizens since late November, accusing them of terrorism. The U.S. ambassador to Hanoi has criticized Vietnam's conduct in holding the U.S. citizens. Mat

发表于:2019-01-11 / 阅读(120) / 评论(0) 分类 VOA常速英语2007年(十二月)

图片1 At Culips we always try to be a little crazy! This word has a literal meaning but also tons of slang ways to use it. In North America it is a very popular word. Other similar words include, insane, bananas, nuts. Check out this podcast to hea

发表于:2019-01-28 / 阅读(115) / 评论(0) 分类 英语博客-北美风情

12 December 2007 Vietnam has released three of the four Vietnamese-born United States citizens it arrested in November and accused of involvement in terrorism. The release comes a day after the U.S. ambassador criticized the detentions. Matt Steingla

发表于:2019-02-02 / 阅读(117) / 评论(0) 分类 VOA常速英语2007年(十二月)

听多了流行的歌曲,今天给大家来一首老歌经典,希望大家会喜欢。 如果大家有什么好歌,也可以给我留言或是在评论栏里给大家推荐。 I walk the line By Johnny Cash I keep a close watch on this heart of

发表于:2019-02-06 / 阅读(151) / 评论(0) 分类 好听的英文歌曲

BEIJING, Feb. 28 (Xinhua) -- Construction began on China's first low-speed maglev(磁力悬浮火车) line Monday in Beijing, a project that will make China only the second country with a low-speed maglev line after Japan. The project marked China's

发表于:2019-02-07 / 阅读(135) / 评论(0) 分类 英语新闻

By Gilbert da Costa Abuja 08 August 2007 Nigeria Nigeria has approved citizenship status for about7,000 Liberian and Sierra Leonean refugees in the West African country. For VOA, Gilbert da Costa in Abuja reports that the refugees opted to remain in

发表于:2019-02-08 / 阅读(152) / 评论(0) 分类 2007年VOA标准英语(八月)

今天我们要学的词是 flatline. Flatline的意思是停滞不前,可是作名词或者动词。The Bank of England has said it believes the UK economy will flat-line this year.英格兰银行说,英国经济预计今年将出现零增长。

发表于:2019-02-08 / 阅读(106) / 评论(0) 分类 英语单词荟萃

FIFA close to decision on goal-line technology

发表于:2019-02-08 / 阅读(88) / 评论(0) 分类 英语新闻

在习语表达中,line可是一个很多用的词汇,不仅仅是绳索,路线或球场上的边界线,line还有很多更加丰富而有趣的表达,一起来看看吧~ 1.the bottom line 本质问题 该习语原意是指账本最底行,盈

发表于:2019-02-18 / 阅读(112) / 评论(0) 分类 英语口语

今天我们要学的词是out of line。 Out of line, 可以用来指行为举止过份,出格。 The candidate was clearly out of line by using personal attacks in the debate, 这个候选人在辩论中进行人身攻击的做法显然是有些过

发表于:2019-02-18 / 阅读(126) / 评论(0) 分类 英语单词荟萃

今天我们要学的词是walk a fine line. To walk a fine line, 小心行事。 Coaches have to walk a fine line between pushing their players to their full potential and pushing them too hard, 做为教练,一定要在鼓励运动员充分发挥潜

发表于:2019-02-18 / 阅读(111) / 评论(0) 分类 英语单词荟萃

Line In.... Line Down Line in... line down... line in* Line in... line down... line in... line down Line in... line down... line in... line down Line in and save me Myself can drug me down Line in, forever blissful Continue to line down Line in... li

发表于:2019-02-26 / 阅读(151) / 评论(0) 分类 英文摇滚歌曲

Helen: This is Real English from BBC Learning English. Im Helen. Zoe: 大家好,我是刘佳。Helen, 今天咱们要学的是什么最新表达呢? Helen: Todays new expression is bottom line. Zoe: Bottom line. Helen, 这个短语说的是什么啊? Helen: Well, bottom line is

发表于:2019-02-26 / 阅读(222) / 评论(0) 分类 地道英语在线听
学英语单词
a stumpy
alkylated aromatic hydrocarbon
ambush hunter
aqua carbolisata
augsburg check
back-burners
Basolan chrome dye
blowsier
butyric(acid)fermentation
Callicebus
camera technique
carriage gain
chaetogaster diastrophus
command key indicator
control-system feedback
controllable cock
coolant density reduction
crawler-drawn
cribweir
cruentations
cryptate compound
decay width
dental lisp
differential pressure type flow meter
double bars
effective hardening depth
electrocardiolopy
electron self-acceleration
elevator car dimensions
excruciating
execution circuit
extended graphic character set
fixed ignition
Fresnel bimirror
Giles,Saint
glabrifolia
gravitino fields
growncelle
gun-fight
Hai, Ko
harralde
have much ado
high-achievement
index hyperopia
instantanous center
interlocking of points
jumpest
law of distress
level displacement table
Lisfranc fracture
Lithonate
lyk
MALACODERMIDAE
mental therapy
motile aeromonas infection
normally closed (pneumatic)
optimum pH
pachydermial
pan amalgamation process
pesar
phenylimino
phonoaesthetic
Podgorac
postural tone
predicated-wave signaling
protecting organ
proteolytic emzyme
quasilinear hyperbolic equation
rear window glass
research on sales policy
resin-pigment ratio
restriction on parameter
roasted peanut
rodenbeck
rudder effectiveness test
short driven bolt
short-haired
shuffleboarder
single frequence network
singular element of a Lie algebra
sleep with them
slide rack
Snipping Tool
snowest
somatico-
sufficiency of illumination
Svay Rieng, Khet
swabberly
Swietlik
to ... heart
trichobranchiate gill
University Park
unlimited traffic source
unmovableness
vice-clamp
violation transition
visual tension
wall panels
wave chart
wind me up
yellow fevers
Yorito