音标:[e'setɔleis] ;
醋酸(生成)酶

Alex wanted to become a citizen. He signed up for a citizenship class. He went to the first class. The teacher spoke only Spanish. All the other students spoke only Spanish. Alex spoke Spanish, too. He asked the teacher, Why are you speaking Spanish?

发表于:2018-12-04 / 阅读(48) / 评论(0) 分类 英语第1级听力-English Level 1

Alex wanted to become a citizen. He signed up for a citizenship class. He went to the first class. The teacher spoke only Spanish. All the other students spoke only Spanish. Alex spoke Spanish, too. He asked the teacher, Why are you speaking Spanish?

发表于:2018-12-07 / 阅读(61) / 评论(0) 分类 超级简单英语阅读

By Leta Hong Fincher Washington, DC 27 February 2007 watch Genealogy report Strom Thurmond and Al Sharpton A new genealogical study shows that a prominent African-American civil rights activist is descended from a slave owned in the mid-nineteenth c

发表于:2019-01-12 / 阅读(79) / 评论(0) 分类 2007年VOA标准英语(二月)

今天我们要讲的习惯用语里有一个共同的词ace。打扑克的人都知道,最大的牌就是ace。有了ace,你就胜券在握,你轻易不会出ace,而是备而不用,要把好钢用在刀刃上。这样就产生了下面我们

发表于:2019-02-03 / 阅读(97) / 评论(0) 分类 美国习惯用语

1) head to head / toe to toe 直面对战 2) face to face 面对面 3) see eye to eye 意见相同

发表于:2019-02-03 / 阅读(66) / 评论(0) 分类 OMG美语

By Dan Robinson Capitol Hill 07 December 2006 Legislation to establish permanent U.S. normal trade relations [PNTR] with Vietnam is nearing consideration again in the U.S. Congress, and could win final approval before lawmakers are scheduled to adjo

发表于:2019-02-06 / 阅读(97) / 评论(0) 分类 2006年VOA标准英语(十二月)
学英语单词
4-ejpianhydrotetracycline
A OK
a. angularis
air dam skirt
asbestos friction sheet
autoequivalences
barotropic instability
boleros
cast setting
chicken-shit
closed ranks
collimating error
communication range
control point synchronizer
corkages
dickride
dicranodontium asperulum
effecters
electrokinetic potential
elongation percentage
environmentally-safe
event definition language
exhaust water header
extrusion with front pressure
family Carchariidae
Fibro-cartilage
floor pressure arch
Frank Harris
free-fileld calibration
gabbed
gangrenous mastitis
gastrular cleavage
gold tooling
graphic method
greenwich apparent civil time
guardian spirits
h (specific enthalpy)
haulm extractor
hemitelia boninsimensis (christ)diels
high accuracy
high-z
hoodias
icepicks
indolocarbazole
integrate
isocure process
istesso tempo
jim beam
kalborsite
karl wilhelm siemenss
kinetochore(schrader 1936)centromere
lehigh
lethal dose-50 time
limited-plans
little jack horner
logical swapping
loris tardigradus
mazons
MiconazoleNitrate
not care a twopence
overcoil
overpredicted
pantamide
peripetia
pesme
private banks
probabilism
procedure word
processor serial number
proto-oncogenic
quillers
radiation belts of the Earth
receipts on account
receive notice to quit
rewritten
roseneath
Sankt Augustin
Scrophularia henryi
semi-reductive
sentinel crab
silt particle
single shaft engine
Sonnite
Spirillum obermeieri
St. John's-bread
stolne
string processing
term space
thermoelectrical action
thus and so
thyrogenic
tidal flat sediment
transportation industry
tree-spiking
trefnant
Tupinambis
unharbouring
uni-processors
unvascular
vagodepressor
ventilation with two-parallel-tower entries
wetting-out