单词：Clovis I
n. 克洛维
词型变化：名词复数形式 : cloviss is
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VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Bob Doughty. VOICE TWO: Northern Lights seen near Palmer, Alaska last year And I'm Barbara Klein. On our program this week, we will tell about the mystery of the aurora borealis, bet
发表于:2019-01-11 / 阅读(142) / 评论(0)
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Knife Cuts on Mastodon Bone Reveal Earlier Humans 乳齿象骨化石上的刀痕!人类文明比你我想象的更久 Scientists diving in a Florida river found bones and tools that could change the history of humans in the Americas. These new items
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2016年VOA慢速英语(六)月
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ARI SHAPIRO, HOST: More than eight months into the Trump administration, many federal agencies are still missing key personnel. As those positions slowly get filled, one lower-level pick at the Department of Agriculture is stirring up controversy. Am
发表于:2019-01-16 / 阅读(114) / 评论(0)
2017年NPR美国国家公共电台9月
2017年NPR美国国家公共电台9月