音标:[l'ju:sɪn] ;
n. 亮氨基酸, 白氨基酸
n. A white, crystalline, nitrogenous substance formed in the
decomposition of albuminous matter by pancreatic digestion, by the
action of boiling dilute sulphuric acid, and by putrefaction. It is
also found as a constituent of various tissues and organs, as the
spleen, pancreas, etc., and likewise in the vegetable kingdom.
Chemically it is to be considered as amido-caproic acid.

Millions More Children to Receive Vaccines More than one million children die each year from severe diarrhea and pneumococcal disease. Today (Tuesday), the GAVI Alliance announced an expanded campaign against the two leading killers of children world

发表于:2018-12-16 / 阅读(191) / 评论(0) 分类 VOA标准英语2011年(九月)

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! Thank you!

发表于:2018-12-30 / 阅读(229) / 评论(0) 分类 单词解析速记

US Scientists Expand Scope of HIV Vaccine Study The worlds largest ongoing HIV vaccine study has been expanded to consider multiple ways a vaccine might boost immune response to the AIDS virus. The U.S. Institute of Allergy and Infectious Diseases (N

发表于:2019-01-14 / 阅读(178) / 评论(0) 分类 VOA标准英语2011年(八月)

Broadcast on Coast to Coast: November 7, 2002 Rebroadcast on VOA News Now: November 10, 2002 AA: I'm Avi Arditti with Rosanne Skirble, and this week on WORDMASTER -- slang and idioms in American politics. RS: Tuesday was Election Day, and Slangman Da

发表于:2019-01-25 / 阅读(252) / 评论(0) 分类 词汇大师(Wordmaster)

By Jessica Berman Washington 11 May 2006 French researchers at the Sanofi Pasteur Institute say they have developed a bird flu vaccine that, so far, appears to be safe and effective in humans. But obs

发表于:2019-02-04 / 阅读(236) / 评论(0) 分类 2006年VOA标准英语(五月)
学英语单词
a matter of record
accounting on accrual basis
adderall
adipic acid dibutyl ester
afformative
albedo neutron dosimeter
Amylong
Apollo Bay
aspirator cleaner
avionicss
basal cell papilloma
benevolents
bismarsen
boresighting adjustment
calumniously
carcholine
carrying capacity of crane
cholecystenterorrhapyh
chromium impregnation
ciiaphylline
cinnamyl-alcohol
cobalt chloride paper
code dialing
cognitive activities rating scale
coke coal
completely knocked-down
contiguous data structure
crichton-vulcan
crop end pusher
cryptopines
debt to net worth ratio
decalcifying solution
dip of shore horizon
ductus lacrimales
durrey
esfera
felt fabric
flush trimmer
flux ring
gasp syndrome
general malformation
group consensus
head diameter
heald bar
heavy hour
holman hunts
industrial partnership
infiltration and redistribution
interdiction/reconnaissance attack system
IRSs
join issue with
jot specification
Lincs
Macropanax
mainland China
microfilm cartridge
Minnipa
mislocalization
Munkflohögen
Obirashibe-gawa
oofta
operation (working)drawing
over-feeds
overconstrained
Palestrol
parallelised
pecora
Pelvetia silicuosa
pendrous
Petsai
pointillism
propanoic acid
Prunus laurocerasus L.
pulling at
quenched and tempered
rectovaginopexy
repacking expenses
sclc-v
single isolated bubbles
soft-spokens
solid homogeneous reactor
solid-drawn steel pipe
sorboses
subluxation of cervical vertebra
super-threshold visibility
surface broaching machine
tagliatelli
tenderheartedness
thorium iodide
threeand
two-phase modulation
two-step microscopy
unnoyand
venturi type expansion nozzle
warm-season crop
water tube cleaner
weakly continuous stochastic process
weather-bound
wranglin'
zonal soil profile
zoukifying