[化] 标记化合物

生活情景英语对话:今天的晚餐该做什么吃呢

生活情景英语对话:今天的晚餐该做什么吃呢 Mary： wonder what we should have for dinner this evening. 我们今天的晚餐该做什么吃呢？ Bob： Are you asking me? 你在问我吗？ Mary： Yes, I am. I really dont feel much

发表于:2018-12-12 / 阅读(53) / 评论(0)

生活英语情景对话

生活情景英语对话:后天我要开始重新节食

生活情景英语对话:后天我要开始重新节食 Mary： wonder what we should have for dinner this evening. 我们今天的晚餐该做什么吃呢？ Bob： Are you asking me? 你在问我吗？ Mary： Yes, I am. I really dont feel much lik

发表于:2018-12-12 / 阅读(65) / 评论(0)

生活英语情景对话

CNN 2009-11-20

Travelers are seeing some major delays and cancellations this morning. It's because of a problem with the air traffic system in Atlanta that allows pilots to log their flight path. The FAA was quick to point out that it isn't a safety matter, it's ju

发表于:2019-01-07 / 阅读(45) / 评论(0)

cnn2009年(十一)月

英语博客：ESL Podcast 705 – An Exclusive Guest List

Catherine: Do you have a draft of the guest list? We need to get the invitations out next week. Ralph: Its not quite done yet. I keep going back and forth about a few people Im not sure about, like Lacy Say. Catherine: Lacy Say? Shes a has-been. She

发表于:2019-01-11 / 阅读(37) / 评论(0)

地道美语播客

PBS高端访谈:枪击案之后的小学校园是如何正常运营下去的?

GWEN IFILL: Now a unique look at school safety issues through the eyes of young people. Today, we're launching a new feature from our network of Student Reporting Labs, middle and high school journalism programs around the country. It explores how th

发表于:2019-01-27 / 阅读(32) / 评论(0)

PBS访谈教育系列

'Our' not 'Your'

At a small parish (教区）in rural New England there lived a priest, and several nuns. One day, one of the older nuns wasnoticing that the rugs （地毯，小垫子）in the church were beginning to fray（磨损）. She went to the priest and tol

发表于:2019-02-06 / 阅读(271) / 评论(0)

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acyl groups

anti-infective agents

anti-pirating agreement

Artibonite River

attractive uniaxial crystal

autoregressive spectral estimation