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Theres a tiny car that turns in a perfect circle, and stands up on two wheels for parking. Solar roofing tiles to collect energy for home needs. A grain thresher thats made of bicycle parts. These are some of the creations at the Smithsonian Cooper-H

发表于:2019-02-12 / 阅读(93) / 评论(0) 分类 VOA标准英语2010年(六)月

汉字是由笔画构成的。笔画是书写工具在书写面上的运动,大概有三十种不同类型,有些是基本笔画,有些是复杂笔画。笔画对学习汉字以及书法都有重要作用。下面分别说明。注意,笔画的

发表于:2019-02-14 / 阅读(96) / 评论(0) 分类 英文语法词汇
学英语单词
a straight eye
add time
agra carpet
alkalisers
all manner of men
analytical reagent quality
anchor prohibited mark
antidebt
atropic acid
Ayakawa
baby capsules
Bambara States
barium dioxides
batiri
bisarylated
block ... in
bone-dusts
boon companions
centralgyl
change in grade
chirnside
cochen
coherent moving target indicator
contingent right
crape weave
cupola slag
cyperus prolifer
diallage bronzite peridotite
digital backup
duck mold packing
dust-control with enclosure
familien
Ff, form feed.
file searching
filling culvert
financial center
fiuid reservoir
forward edge
frontmark
half hour rating
height of transverse section
hibernate
holy joes
I.A.C.
Igbon I.
in proper sequence
inquiry typewriter
interpretacin
istel
judge advocate general
juilliards
kambei
letter head
lighter - than - air craft
liniment chloroform
man's room
marine aquatic products processing
market foreclosure
master warrant officer
methodised
mnemonized
nearthrosi
neutral feeder
nondisclosures
nonunique
occursation
office-hours
ondule
papillomaviruss
PC ,lecithin
pervertive
pipe schedule number
radioantimony
ralstonism
reach one's limit
renal gland
S.C.Is.
Schaffer's acid
scientific assist firmware
seat fee
semilunar canal
sizes
Sonnite
specific relief
St Clears
strap end
streptothrix canrae
sub-depot
submersum
sustainable forestry
tepidarium
tetramethylene diguanidine
time-measurer
tobasco
topping processing
two's complement number notation
Umm Dawmah
upbred
virgin ammonia liquor
visible peristalsis visible intestinal peristalsis
well curb
wineglassesful