效粒径

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(115) / 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(78) / 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(44) / 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(59) / 评论(0) 分类 与美国小学生一起学英文第5册

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(47) / 评论(0) 分类 英语PK台

发表于:2018-12-24 / 阅读(117) / 评论(0) 分类 英语口语1+1

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(51) / 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(87) / 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(80) / 评论(0) 分类 CNN2010年(十)月

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(54) / 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(81) / 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(84) / 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(124) / 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(100) / 评论(0) 分类 购物-Shopping

Russia, once the world's third largest wheat exporter, is returning to the international grain market after a one-year gap caused by severe crop losses. Moscow stopped selling wheat last year after catastrophic fires and drought destroyed one-third o

发表于:2019-01-30 / 阅读(82) / 评论(0) 分类 英语新闻

今天我们要学的词组是against the grain。 Grain是谷子,不过在这里,grain指的木材的纹理。木工都知道,刨木头一定要顺着木材的纹理;You cannot polish wood against the grain. 作为习惯用语,against the

发表于:2019-01-30 / 阅读(83) / 评论(0) 分类 英语单词荟萃

AGRICULTURE REPORT - World Grain Supplies Expected to Shrink Further By Mario Ritter Broadcast: Tuesday, April 27, 2004 This is the VOA Special English Agriculture Report. The Food and Agriculture Org

发表于:2019-01-30 / 阅读(124) / 评论(0) 分类 农业与发展

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(101) / 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(47) / 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(47) / 评论(0) 分类 万物简史
学英语单词
acaphyllisa bracteatae
action-orientateds
agricultural machinery and tractor station
alfast
allens
Androscoggin
ape fissures
Apparent Order and Condition of Cargo
arcus cerebellaris
astronaut quarantine
autopsychical disorientation
belt polishing machine
birdliming
cambered aerofoil
catactrophic
champfleury
chilidogs
clay membrane electrode
cluckier
COLA clause
compart-ment
complete plants and equipment
continuing the reproduction of labor power
countersurveillance
danto
doctylogyrosis
dog spike floating
double-word boundary
dual compression
electrotechnical department
erigeron annuus pers. fleabane
eupathy
exchange of reinsurance
family mastotermitidaes
femto
Ficus aurea
financial leverage
fob sth off on sb
gamma gauge
gas-collecting ring
geostatistic
Gespunsart
gingellies
giscard d'estaing
Godden, (Margaret) Rumer
grum
gunbelt
haydel
high-contact
high-energy astronomical observatory
house line symbol
Huraymilā'
iris diastasis
justo daract
Kruh
kysthitis
land transfer system
leucons
libian
lluminalion
margo pupillaris
melanitis leda
mental region
minor metal
morriston
nitroindoline
objurations
ostiolate
paraguard
pentomer
philo-
plate streak
portunus pubers
preselectors
pure chemical control
qufu
radial rib
Rasputino
rear red reflex reflector
romanow
selective screen
semiautomatic ground environment system
sending-end system
shank off
sludge occurrence
squirrel-cage disintegrator
stem pitting disease
synienai
terra - cotta warriors
texas toads
thermostatistic
third level inner-macro-call
toss your hat into the ring
transhyoid
valepotriate
vincoside-lactam
vor
warking structure of population
wide game
yellow-roots
yue