双螺距螺旋(螺距等于直径的两倍)

【句子对照】 How did you pull dinner together so fast? It only took you 10 minutes! 你怎么这么快就把晚饭做好了?只花了10分钟! 【关键俚语】 pull something together (verb phrase) 英:to get things organized, especiall

发表于:2018-12-03 / 阅读(52) / 评论(0) 分类 英语听力广播—Listening

To shake a leg To pull one's leg 美国的成语和俗语,也和其他语言一样,有许多都是由身体各个部份的名称组成的。例如:To follow your nose是指

发表于:2019-01-14 / 阅读(126) / 评论(0) 分类 美国习惯用语

to pull your socks up to knock your socks off 许多美国成语或者习惯用语都是以各种衣服的名称来组成的。比如说,

发表于:2019-01-14 / 阅读(86) / 评论(0) 分类 美国习惯用语

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发表于:2019-01-20 / 阅读(54) / 评论(0) 分类 英语单词荟萃

我们上次学的习惯用语都有push也就是推这个词,而我们今天要讲的习惯用语却都有一个动作相反的词pull, 也就是拉。我们先要学两个习惯用语,它们分别是:pull for. Pull for是打气、鼓劲,或

发表于:2019-02-18 / 阅读(92) / 评论(0) 分类 美国习惯用语

今天学的词组是pull back。Pull back的意思是往后拉。比如拉开窗帘。Pull back也有把士兵,军队撤回的意思。比如有报道说,由前国务卿贝克等十位知名人士组成的伊拉克研究委员会经过八个月的

发表于:2019-02-24 / 阅读(42) / 评论(0) 分类 学个词
学英语单词
a a school treat
abnormal-normals
access trunk
address sensor
amphiprostyles
andris
anti-Compton shield
appoint under a will
arc duration
banker's deposits
banshee
barks
bicolor light
Bilharzia japonica
biotin-avidin
ceramic tile flooring
cubicle-type switchboard
cutaneus magnus vein
deoxyribosyls
direct shadow parallel light apparatus
distress call (sos or mayday)
dock gang
dolichopodus
double-solvent extraction
dubrovytsya (dombrovitsa)
Eislingen Lutherstadt
electrode-lift regulating device
Enor motor
Ethoforme
full-point
gang shag
genus eleutherodactyluss
Gillen R.
gironny
goalbound
half tone signal
have no call for
IAPSO
in item
indeterministic
inferior cornu
investment recovery
it's a crime
jacquard board
jigging conveyer
kanius
Khôngxédôn(Khong Sédone)
kiloelectronvolt
Kincolith
knowledge management software
linkage guide
lord proprietor
lowballers
megadoc system
mesohepar
military air defense warning
mixed-signal test
monounsaturated fat
Mont Cenis
mucous ophthalmia
muilenburg
neonesidea chengyingi
Neopythagoreanism
nerisopam
obligated
operations research society of america (orsa)
oyster of wood
pea-cod
pedigristical
phellinus membranaceus
phenylnorlobelol
phweep
plotomat
Poulsen-arc converter
procurement source
production activity
proportional treaty
Protopteridiales
purchasing policy
Scrophulariales
settled bed fast reactor (SBFR)
social gatherings
spillway gate
spodic cambisols
standard television signal
starvation treatment
static work
station level
subdominant species
substantia nigra
suctorial
time limit
Torvlφysa
ulceromutilating acropathy
vibrator type recifier
water-tight facing arch
watervapor
weathering test
Wharton's jelly
wispier
zuid-holland