KELLY MCEVERS, HOST: Every president makes at least one controversial pardon. But Donald Trump's pardon of former Arizona Sheriff Joe Arpaio is different. It came just seven months into the Trump presidency, and it was announced late Friday night on

发表于:2018-12-02 / 阅读(57) / 评论(0) 分类 2017年NPR美国国家公共电台8月

This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr

发表于:2019-01-08 / 阅读(69) / 评论(0) 分类 Scientific American(八)月

Jonah Hex. Are these the boys you wanted? You surely have done us quite a favor. A transaction is all it was. I'll collect my hundred dollar bounty on them and be on my way. From Superman and Spider Man to Josie and the Pussycats, Hollywood has a lon

发表于:2019-01-13 / 阅读(61) / 评论(0) 分类 VOA标准英语2010年(六)月

'Deport Them': Arpaio Departs From Trump On DACA Recipients RACHEL MARTIN, HOST: For more on Arpaio's chances and what the high number of departing members of Congress could mean for the Republican Party, NPR political editor Domenico Montanaro joins

发表于:2019-01-16 / 阅读(44) / 评论(0) 分类 2018年NPR美国国家公共电台1月

Indoor air pollution is a common threat to human health, the new study looked at five common house plants and found that when it comes to removing harmful chemicals from the air, those five plants are better than others. 室内空气污染对人类健康

发表于:2019-02-07 / 阅读(66) / 评论(0) 分类 阅读空间

本期内容: A humble houseplant with a dash of rabbit DNA could help lower our exposure to indoor air pollution, new research suggests. Scientists have revealed that by inserting a rabbit gene into devils ivy the plant is able to clean the surrou

发表于:2019-02-20 / 阅读(50) / 评论(0) 分类 夏说英语新闻晨读