[网络] 亚烷基

国家地理:China's Lost Girls 被抛弃的女孩 -3

My real biological mother left me in a basket with me and my sister saying that we were twins and she waited to make sure that we were safe and then my mom right now Betsy, she came to get me in China to adopt me and she took me back to America as, a

发表于:2018-12-30 / 阅读(34) / 评论(0)

国家地理2007年

VOA标准英语2011-Life Batteries are Tomorrow's Innovations

Three-dimensional cell phones and batteries that last much longer are just two of the techonogies that could become commonplace in the next few years. For the fifth year, IBM has looked at the horizons of research, picked five technologies and announ

发表于:2019-01-07 / 阅读(27) / 评论(0)

VOA标准英语2011年(一月)

2007年VOA标准英语-Sierra Leone's Electricity Shortage Charges Up

By Naomi Schwarz Freetown 30 August 2007 In Sierra Leone's presidential election, electricity has become an important campaign issue. In the crowded capital Freetown residents can go weeks without power, but some of the city's youth, faced also with

发表于:2019-01-13 / 阅读(71) / 评论(0)

2007年VOA标准英语（八月）

VOA标准英语2012--New Alzheimer's Research Raise Hope for Treatment, Cure

New Alzheimer's Research Raise Hope for Treatment, Cure Scientists working to unravel the mysteries of Alzheimer's disease are excited by two recent studies. Both provide important new insights on how the disease spreads through the brain. Guy Eakin

发表于:2019-01-14 / 阅读(38) / 评论(0)

VOA标准英语2012年(二月)

美国习惯用语:565 hold to one's hat

我们今天要学几个由hold这个词为主的习惯用语，hold常用来表示用手拿住或者抓住，今天要学的第一个习惯用语是：hold on to one's hat。大家都知道hat是帽子，hold on to one's hat这个习惯用语出现在

发表于:2019-01-14 / 阅读(69) / 评论(0)

美国习惯用语

60秒科学:Amygdala's Acidic Aspiration Answer

Amygdala's Acidic Aspiration Answer A study in the journal Cell shows that the buildup of carbon dioxide when we stop breathing causes a pH change that signals proteins in the brain to force us to inhale. Karen Hopkin reports. Maybe its happened to y

发表于:2019-01-30 / 阅读(143) / 评论(0)

60秒科学

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学英语单词

a mushroom millionaire

actual expense

al kifl

Alpinia globosa

anti-parallel connection

antilocking

arteriolovenular bridge

at someone's beck and call

at your quotations

bakaw

banana stick