un. 街道照明

This is Scientific Americans 60 second Science, I am Christopher Intagliata, got a minute? You've probably seen clouds of insects swirling round a streetlamp at night. But something you may not have noticed is that streetlights attract bugs to the gr

发表于:2018-12-24 / 阅读(43) / 评论(0) 分类 Scientific American(五)月

019 The Little Match-Girl It was a Christmas Eve with heavy snow. A little girl was selling matches on the street. Matches, matches! But no one looked at her. She had lost her parents a few days ago, and she was selling matches without a coat in the

发表于:2018-12-31 / 阅读(187) / 评论(0) 分类 100个儿童英语小故事

人工照明能使会唱歌的鸟儿早上更早的开始唱歌,这可能引起什么样的后果呢?究竟是好,还是不好? Artificial lighting is making songbirds start singing earlier in the day, with possible consequences for breeding.

发表于:2019-01-02 / 阅读(67) / 评论(0) 分类 60秒科学

Christmas Attractions Across America Cities all across the United States are dressing up for the Christmas season with trees, lights and holiday magic. Today, we look at a few of them. New York City In New York City, one of the best-known holiday att

发表于:2019-01-02 / 阅读(25) / 评论(0) 分类 2017年VOA慢速英语(十二)月

It was the summer of 1878. Tom had been working hard for a long time. He was thinking about taking a vacation. Then a friend invited him to join a group of scientists. They were traveling by train to Wyoming to see an eclipse of the sun. Tom decided

发表于:2019-02-13 / 阅读(38) / 评论(0) 分类 名人认知系列 Who Was

Preparations for the Chinese New Year are well underway in Beijing with streets and parks lined with decorations. At Wukesong New Year market, all manner of lanterns and decorations, many in the shape of the monkey, are on sale. Liang Jianfeng took h

发表于:2019-02-21 / 阅读(40) / 评论(0) 分类 2016CRI中国国际广播电台
学英语单词
Agrosan
alumbloom
alveololabial groove
analogue equation solver
apostatiz'd
beanpot
bearing distance indicator
betrixaban
by the inspiration of
calculator circuit test instrument
carbonate compensation depth (ccd)
career-limiting move
character dance
circumferentials
computer assisted learning
consumable nozzle
contact point dresser
courseload
crucifige
Cushing's thermic reaction
Cyber ethics
DDPTI
dolichocephalies
ear auricle
employment injury benefit
encouragement of silviculture
equationlike
estimated heritability
exocytotic
exothelioma
FEV3
green shading
gross agricultural production
hatchery
have a kick coming
hourglass contraction
hydraulic arm
in apparent good order and condition
incense trees
individual prediction
initial metacentric height
international miles
Jaunkalsnava
jealoused
kite runner
last analysis
latch down
Loefflers methylene blue
lusory
mechanical expansion joint
mesogastriums
moderator tank
mouthiest
nanograin
natos
negatived
negresses
nicaraguensis
nominal rudder torque
octophones
of all kinds
one-way track
Pangkor Engagement
pedagogical economics
pesheva
phase-change coefficient
photosensitive printing
Pilea peploides
plugin or plug-in
polar band
porcine enzootic pneumonia
pressure vent valve
propelling plant
protocol efficiency
pulse current electrolytic coloring
pyogenic proteins
pythium spinsoum sawada
rank queue
ratio irradiance
rb-sr isochron method of dating
read-write compatible head
roman paces
room antenna
second-order leveling
Shorea robusta
short-pitch winding
site-level
skeleton table
soldier orchid
south-norths
spiroergometry
suffragan bishops
sweet corn plant
taiwan network access point
theocentric
tweetable
uglier
unstable relict
viscayas
water temperature relay
weigela grandiflora fortune
What is not pleaded cannot be argued.