硫(35S),硫-35

Sandy Lam has been rising early each day to swim in the waters off Hong Kong Island for nearly 30 years. Lam is 68 years old. He is part of a small community of about 50 people mostly older adults who often use the Sai Wan Swimming Shed. The small bu

发表于:2018-12-16 / 阅读(96) / 评论(0) 分类 2018年VOA慢速英语(十一)月

Lesson 92 A Box Of Matches 第92课 一盒火柴 We need fire every day, to warm our houses, or to cook our food, or to give us light. 我们每天都需要利用火来给房间加温、烹饪、照明。 Even savage tribes use fire for such purposes

发表于:2018-12-18 / 阅读(104) / 评论(0) 分类 英国学生科学读本

Up in the Sierra Madre Mountains, in a bowl-shaped valley, is the capital of Mexico. 在马德雷山脉上有一个碗形的山谷,里面坐落着墨西哥的首都, It is called Mexico City, so you dont have to learn a new name. 叫做墨西哥城

发表于:2018-12-28 / 阅读(178) / 评论(0) 分类 美国学生世界地理教材

Dreams! How nice do they sound? I am not talking about the dreams we have when we are asleep but about the life long aspirations in each one of us. I am sure many or rather shoud I say all of us have goals in our lives. It could be the goal to be th

发表于:2019-01-02 / 阅读(214) / 评论(0) 分类 美丽英文

Lesson 57 Sulphur 第57课 硫 Did you ever have to take a mixture of brimstone and treacle? This mixture has not a pleasant taste, but it is a useful medicine; and if it will do us good, we should not care much whether it has a nice taste or not. 小朋

发表于:2019-01-17 / 阅读(131) / 评论(0) 分类 英国学生科学读本

The fumes of burning sulphur will bleach straw, silk, and other things, and make them white and clean. These fumes are also useful for killing the germs which cause fevers and other diseases. 燃烧的硫磺冒出的烟,可以漂白稻草、丝绸和

发表于:2019-01-17 / 阅读(162) / 评论(0) 分类 英国学生科学读本

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Oh, my God, are you choking? Oh, my God, I feel like you're choking! Is anyone here a doctor? What am I saying? I forgot where I am. Has anyone here ever seen What do you do when a girl is choking? I just back up a few inches. What do we do? What do

发表于:2019-02-16 / 阅读(132) / 评论(0) 分类 跟着美剧练发音

The State Council, China's cabinet, has released its timetable to upgrade fuel quality nationwide before 2017. The new standard for petrol and diesel, with sulphur content within 10 parts per million, is expected to be in practice nationwide by 2017.

发表于:2019-02-21 / 阅读(126) / 评论(0) 分类 英闻天下

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发表于:2019-03-02 / 阅读(140) / 评论(0) 分类 加州语文教材California Treasures G1
学英语单词
amphibiome
associate professorship
association index
atmospheric phenomenon
atoned for
bellows operated pilot valve
biotite granite
bipolar leads of electrocardiogram
bombinating
bona fide endorse
branch and bound search
British Standard Specfication
carissas
Ceraurus
closed display
compound truss
confiscation of bureaucratic capital
corneal cells
craples
dampness pathogen
desem
detected
DIC-FL
driver viewing distance
dummy plug
e-democratic
eight-to-five
electromagnetic fathometer
element of the integral
ESCOM (Electricity Supply Commercial Reactor)
failure wedge
flow surge
free stock
fulbright scholar
fungation
genus Bradypus
geyerite
gingival disease
gnar
has seen better days
heneicosanoic
illate
inanitiation
infinite swept wing
injectors spacing
intrinsic stand off ratio
invariant of quadratic form
Ishtragh
kotzes
LA GEO S
Lienart
light-truck
liquefied-gas tanker
loose box
magnetic field strength anisotropy factor
Mauchline
methylase
microkinetosphere
Micromeria biflora
Nan Ling
neurotrophically
nobl
non-Fraunhofer component
nonexplanatory
Olney
one parameter group of transformations
optimum reaction
paraphimosis
parochial
payed off
plate neutralization
porky
pregenerated operating system
Prek Chik
pretarsus
problem confirmation status
quarte-wave resonance
Ranunculus oreionannos
remeids
Rockefeller Republican
Ruski Krstur
selfren
separated ammunition
sewer pipe clay
sobriety checkpoint
spacorton
staggered pipe
stockraiser
stop, drop and roll
system feasibility
three phase generators
tippers
todpole
tool post rocker
two sleeper tamper
Valeriana venusta
Vetschau
whaikorero
work-lines
Zefkrome
zoomings