na. 【核】半衰期〔放射性同位素分裂[从生物体中排出]一半量的时间〔也作 half life 或 half life period〕〕
[网络] 半条命;半寿期;半死不活

When I was a boy, everybody urged me to get plenty of sunshine, so I got plenty of sunshine for a long time. One day while I was 1) absorbing July sun as fast as I could, a doctor asked what I thought

发表于:2018-11-28 / 阅读(175) / 评论(0) 分类 疯狂英语2002年

[00:01.17]A Truth of Life [00:04.46]One of my patients, a successful businessman, [00:08.28] tells me that before his cancer he would become depressed [00:11.78] unless things went a certain way. Happiness was having the cookie. [00:16.48] If you had

发表于:2018-11-30 / 阅读(123) / 评论(0) 分类 英语专业晨读美文

At 22,I didn't _______I need to worry about ______. But one afternoon ________, I ________a hill with a friend and I got really _______. I found I was not as fit as I had ________. So I decided I must get _______fit. And I did it by _______my exercis

发表于:2018-12-04 / 阅读(62) / 评论(0) 分类 听听测测

When Sharlock was about to cut Antonio with his knife. Posha stopped him. Wait a moment Sharlock she said. I have something else to say. You may have a pound of Antonio’s fresh but according to this

发表于:2018-12-05 / 阅读(74) / 评论(0) 分类 有声英语文学名著

Just for today Just for today I will try to live through this day only and not solve my whole life problem at once. I can do something for twelve hours that would appall me if I had to keep it up for a lifetime. Just for today I will be happy. This a

发表于:2018-12-07 / 阅读(161) / 评论(0) 分类 幸福是一种态度

I am at the very center of the great white continent, Antarctica. The South Pole is about half a mile away. For a thousand miles, in all directions, there is nothing but ice. And, in the whole of this

发表于:2018-12-07 / 阅读(69) / 评论(0) 分类 冰雪童话

Work is a very important part of life. People work in order to earn a living. A coun- try can only make progress if its people work. It is, therefore, important for us to be hard- working. When we wor

发表于:2018-12-08 / 阅读(431) / 评论(0) 分类 赖世雄初级美国英语

The Stray Dogs Five stray dogs were roaming about looking for something to eat when they came to a deep river.On the river bed they could see a bag full of bones that someone had thrown away. The bones looked very good and the dogs sat on the ban

发表于:2019-01-07 / 阅读(68) / 评论(0) 分类 趣味英语

Just for today I will try to live through this day only and not tackle my whole life problem at once. I can do something for twelve hours that would appall me if I had to keep it up for a lifetime. Just for today I will be happy. This assumes to be t

发表于:2019-01-08 / 阅读(109) / 评论(0) 分类 英语小短文

The author of the The Age of Miracles: A Novel (now out in paperback) reveals the kind of I'm sorry that can turn a marital mistake into a moment of connection. 1. I'm sorry I locked us out of our apartment building that night last January, while you

发表于:2019-01-08 / 阅读(103) / 评论(0) 分类 英语小短文

Can you be inspiring in 140 characters or less? 140个甚至更少的单词会让你受到鼓舞吗? This year, Twitter surpassed 500 million users, and while tweets from such a large base are surely not all inspiring, we'd prefer to focus on the o

发表于:2019-01-08 / 阅读(59) / 评论(0) 分类 励志英语

今天我们要学的词是larger than life。 Larger than life意思是给人留下深刻印象的,具有传奇色彩的。美国前总统西奥多.罗斯福是对美国历史产生重大影响的总统之一。He has a larger than life personalit

发表于:2019-01-10 / 阅读(68) / 评论(0) 分类 英语每日一词

Seventy-four-year-olds are the most contented people in the population, according to new research. 一项最新研究表明,人在74岁时最幸福。 Fewer responsibilities, financial worries and more time to yourself leads to contentment previous

发表于:2019-02-06 / 阅读(41) / 评论(0) 分类 阅读空间

Who Am I To Say Love of my life, my soulmate You're my best friend Part of me like breathing Now half of me is left Don't know anything at all Who am I to say you love me I don't know anything at all And who am I to say you need me Color me blue I'm

发表于:2019-02-07 / 阅读(64) / 评论(0) 分类 好听的英文歌曲

Love of my life, my soulmate You're my best friend Part of me like breathing Now half of me is left Don't know anything at all Who am I to say you love me I don't know anything at all And who am I to say you need me Color me blue I'm lost in you Don'

发表于:2019-02-13 / 阅读(64) / 评论(0) 分类 好听的英文歌曲

We found our second Blue Zone 我们找的第二个蓝区 on the other side of the planet, 在地球另一端 about 800 miles south of Tokyo, 离东京南部约800英里 on the archipelago of Okinawa. 在冲绳县的古拉格岛 Okinawa is actually 1

发表于:2019-02-14 / 阅读(89) / 评论(0) 分类 TED演讲科学篇

中国人称另一半为爱人,我丈夫妻子,我老公/婆,有孩子称孩子他爸(妈),俺家那口子,男的称呼妻子还有屋里的,内人,甚至古代/代还有贱内。那么在英语国家,人们向别人介绍另一半时如

发表于:2019-02-18 / 阅读(282) / 评论(0) 分类 英语口语

2012最具正能量的12句名言 Can you be inspiring in 140 characters or less? 140个甚至更少的单词会让你受到鼓舞吗? This year, Twitter surpassed 500 million users, and while tweets from such a large base are surely not all inspirin

发表于:2019-02-18 / 阅读(90) / 评论(0) 分类 英语美文

You don't actually have to take the quiz. Just read this straight through, and you'll get the point (an awesome one) it is trying to make! Take this quiz: 1. Name the five wealthiest people in the world. 2. Name the last five Heisman trophy winners.

发表于:2019-02-18 / 阅读(67) / 评论(0) 分类 阅读空间

Just for today I will try to live through this day only and not tackle my whole life problem at once. I can do something for twelve hours that would appall me if I had to keep it up for a lifetime. Just for today I will be happy. This assumes to be t

发表于:2019-02-20 / 阅读(58) / 评论(0) 分类 英语美文
学英语单词
a dead dog
a very old science
acetoxanon
apple blights
Asahan
attribute structure
banana conveyor
biap-do (piap-to)
built up area
bulk article
catfights
cellulose plate
circuit-breaker with lock-out preventing closing
clannist
clotbuster
cream-cake
crypt analytical attack
daught stud
daylight synchronized flash
decanting
dipping thermometer
disease and nonbattle injury
edge tone
electric hand dryer
environmental element
fashion statement
flush toilet
gallium halide
general purpose tractor
giardini
Gregorian mode
Hanna, Mark Alonzo
hausenblas
have nothing to show for
heart complication
high-frequency tuner
hydroxyimino
impedance level
in-track
isoreticular
Ivatans
Kozle
Kvarkenskiy Rayon
laser fluctuations
ledger paper
Lepidotrigla
level full capacity
lsb (lower sideband)
machine-gunned
mc68040
mendizabel
miter bend
mixed pickle
modified polypheylene oxide
montrell
multicomponent gas mixture
Network Management Protocol
notch generator
oversize powder
paddy field driving harrow
perfume plant
photomanips
piet-my-vrous
plushenko
pocket pet
premises open to general use
Prokayotae
quartz field flattener
rearface
Recuay
refer to endorser
resin-baseds
roast meat
Royal Danish Ballet
sacc
sea-adder
self-hypnosis
shibaozhai
smazes
snowkids
soda concentration
sound-ranging
sovest
statistics law
stored routine
subservientness
sulfisoxazole
terass
thomas peacock
total sampling method
underexcited
unkink
Vila Nogueira de Azeitão
vouches for
watershed industry
wauled
wesleyan methodist churches
west pakistans
whowl
withafastuosin
wounded in action
zirconium hydride