荧光屏有效直径

So we know that the distance must be about eight thousand miles, as twenty-five is a little more than three times eight. 那么我们就知道从世界一面到另一面的距离肯定是大约8000英里,因为25是8的三倍多一点。 That is no

发表于:2018-12-04 / 阅读(173) / 评论(0) 分类 美国学生世界地理教材

The Moon 月球 We find that the moon is about 239,000 miles (384,551 km) away from the earth, and, to within a few thousand miles, its distance always remains the same. Yet a very little observation

发表于:2018-12-05 / 阅读(142) / 评论(0) 分类 有声英文阅读

The Moon We find that the moon is about 239,000 miles (384,551 km) away from the earth, and, to within a few thousand miles, its distance always remains the same. Yet a very little observation shows that the moon is not standing till. Its distance fr

发表于:2018-12-07 / 阅读(94) / 评论(0) 分类 双语有声阅读

Quarter 25分硬币 A quarter is an American or Canadian coin. quarter是指美国或加拿大的一种硬币。 How much is a quarter? 这种硬币值多少钱呢? A quarter is equal to 25 cents. 它等价于25分。 It is worth one fourth of a do

发表于:2018-12-13 / 阅读(116) / 评论(0) 分类 与美国小学生一起学英文第5册

今天我们给大家介绍两个以 smoke为主的常用语。首先我们要讲的是:To go up in smoke. 大家知道,smoke就是烟。To go up in smoke是指某项工程,或某个交易没有取

发表于:2018-12-16 / 阅读(181) / 评论(0) 分类 美国习惯用语

一个英语单词可分为三部分:前缀(prefix)词根(root)后缀(suffix)。位于词根前面的部分就是前缀。前缀,可以改变单词的意思。 di- 表示使分开,离开 distinguish = di + sting(刺)+ uish 将刺挑

发表于:2018-12-19 / 阅读(97) / 评论(0) 分类 英语PK台

围绕树木展开的话题.... Dan: Hello and welcome to this weeks 6 Minute English. Im Dan Walker Smith and today, for the second part of our tree climbing programme, Im joined by Kate. OK Kate, well last week we were talking about tree climbing,

发表于:2018-12-27 / 阅读(114) / 评论(0) 分类 一起听英语

1. circumference /səˈkʌmfərəns/ -- distance around a circle or rounded body; perimeter The circumference of a circle equals times the diameter. 圆周长等于与直径的乘积。 2. circumlocution /ˌsɜ:kəmləʊˈkju:ʃən/ -- roundabout way

发表于:2018-12-30 / 阅读(141) / 评论(0) 分类 突破英文词汇

Hi, I'm Carl Azuz. Welcome to this Columbus Day edition of CNN Student News! We'll be talking more about Columbus Day in just a couple minutes. But first, we're reporting on a breakthrough in Chile. And we mean that literally. A hole big enough to re

发表于:2019-01-08 / 阅读(134) / 评论(0) 分类 CNN2010年(十)月

HEALTH REPORT -October 30, 2002: Breast Cancer Operation Studies By Nancy Steinbach This is the VOA Special English Health Report. Two new long-term studies have compared two operations for early brea

发表于:2019-01-09 / 阅读(129) / 评论(0) 分类 健康与环境

Diameter 直径 A diameter is a straight line inside a circle. 直径是圆内的直线。 Can any straight line in a circle be a diameter? 圆内的任何直线都是直径吗? No, its two ends must meet at two different points on the circle. 不是

发表于:2019-01-10 / 阅读(110) / 评论(0) 分类 与美国小学生一起学英文第9册

Sand 沙子 If you look around you, you can find sand very easily. 你若环顾四周,就很容易发现沙子。 Sand comes from rocks. 沙子源自岩石。 Each grain of sand is less than 2 millimeters in diameter. 每粒沙子的直径小于两毫

发表于:2019-01-10 / 阅读(137) / 评论(0) 分类 与美国小学生一起学英文第5册

In the storeroom 在库房 A:Where can I find a spare hose for the pump? A:我在哪里可以找到一跟备用的机泵软管? B:What size do you need? B:你需要什么型号的? A: 25 mm diameter. A:直径25毫米的。 B:They're at the back o

发表于:2019-01-14 / 阅读(136) / 评论(0) 分类 职业技术英语口语

A: I am looking for a pan. B: No problem. What size would you like? A: A big one would be nice. B: How about this one? It's our biggest16 in diameter. A: Oh, yes. I like that one. But it's too heavy. B: Okay, try this one. It's made of aluminum. A: O

发表于:2019-01-20 / 阅读(176) / 评论(0) 分类 购物英语对话

A: I am looking for a pan. B: No problem. What size would you like? A: A big one would be nice. B: How about this one? It's our biggest16 in diameter. A:I like that one, but it's too heavy. B: Okay, try this one. It's made of aluminum. A: This is muc

发表于:2019-01-21 / 阅读(157) / 评论(0) 分类 购物-Shopping

BEIJING, Oct. 12 (Xinhuanet) -- Children who spend hours each day watching television or playing computer games have more psychological(心理的) difficulties than those who don't, according to a study published in the US journal Pediatrics(小儿

发表于:2019-01-31 / 阅读(167) / 评论(0) 分类 英语新闻

今天我们要学的词是screen。 Screen, 有检查的意思。All women over 50 should be screened for breast cancer regularly, 凡是五十岁以上的妇女都要定期进行乳腺癌的检查。 美国全国铁路客运公司将首度开始对乘

发表于:2019-02-04 / 阅读(158) / 评论(0) 分类 英语每日一词

Tree climbing: Part 2 NB: This is not an accurate word-for-word transcript Dan: Hello and welcome to this weeks 6 Minute English. Im Dan Walker Smith and today, for the second part of our tree climbing programme(节目,计划), Im joined by Kate.

发表于:2019-02-05 / 阅读(153) / 评论(0) 分类 六分钟英语

Bad weather meant that oil could not be pumped out of the ship the Rena today. The waves were too high. Pumping the oil is slow work because the oil is cold and thick. The pipe from the Rena to the oil barge is nearly 200m long and quite narrow, 7.5c

发表于:2019-02-17 / 阅读(102) / 评论(0) 分类 新西兰英语

Apart from much else, our lively interior created the outgassing that helped to build an atmosphere 不说别的,我们活跃的内部使大量气体喷涌而出,帮助建立了大气层, and provided us with the magnetic field that shields us

发表于:2019-02-25 / 阅读(91) / 评论(0) 分类 万物简史
学英语单词
accumulator grid
acoustic spectrograph
alkali bees
amino baking hammer paint
anallergic
anchor braking system
anevaluation
Arabic teleprinter
atomic stopping cross-section
bronchographic
charterhouses
cocktail-party phenomenon
constant altitude indicator
crank locking frame
culprit of murder
current gold and silvercoin
decelerating conveyer
deshazo
detribalising
do-ing
down-the-row thinning
dugways
ease someone out
East Springfield
establishment units data
Euclidean ring
fascine road
fibre-reinforced enamel
first-movements
five-flowered gentian
fixed pattern method
flippin'
four-diamond
Galmsbüll
Garubhasa
geekerati
genus cypraeas
geologic norm of erosion
glycollic acid
Goyeongjin
hunger striker
ilei verum diverticula
impurity distribution
indoor competition
informa-tion
Jazīreh-ye Shīf
jerrycans
Kocuria
liquidation reserve
location-plate
masiello
matted crytal
McOmish
Mistress of the Seas
Mr.
name word
negative area
net monetary asset
nild
non-selective fading
nonviewable
NT scan
nuclear-energies
numerically controlled filament-winding machine
obs. spot
off-year
optical tachometer
osteochondritis vertebral
over-using
penicillium
Petrinizing
pibble
pick up the slack
pore through
position vacant
positive lag
pseud-ohermaphrodism
radix mesocoli transversi
recountals
renishaw
ribal
San José de las Lajas
serous myocarditis
Shigella dispar
signalling economics
single column pence
single point single action press
sipunculus (sipunculus) norvegicus
stagedive
steppe community
structured needle felt
struthers
swelling degree
then-wifest
toner metering roller
transit first order
two-pan asymmetrical beam
unauthorized terms
undereaten
waste collector system
win a high reputation
wrong-size