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spill inadequate poll stern stability litter commend industrious establish dazzle frequency tower detain periodical appreciable verse cylinder prick glitter yeast kinetic luminous accommodate propagate

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This is Scientific American's 60-Second Science. I'm Karen Hopkin. Thisll just take a minute. Any school kid can tell you that comets are made of ice. That frozen water burning off is what gives comets their characteristic tails. But asteroids were g

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2)Icouldntcareless!我无所谓! 例一: SomeofyousaythatitisbettertosendAndysprogramwiththeemailperiodical. Icouldntcareless,forhisteachingisjustso-so!

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This is Scientific Americans' 60-Second Science, I'm Chelsea Wald. Got a minute? Remember the good old days when we understood our solar system? Then we found out Pluto wasn't a planet. And now a new study puts comets in question. The data come from

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图片1 journal n. 定期刊物，杂志，航海日记，分类账 例句：Blanche writes on politics for a monthly journal. 布兰奇为一家月刊写政治性文章。 periodical adj. 周期的，定期的n. 期刊，杂志 例句：This periodi

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library national 国家图书馆 library municipal 市图书馆 public library 大众图书馆 school library 学校图书馆 college library, university library, academic library 大学图书馆 child

SSS 2011-10-10

This is Scientific American's 60-Second Science. I'm John Matson. Got a minute? Earth's surface is dominated by oceans. But where did all that water come from? Asteroids and comets smashing into the early Earth have long been thought to be a promisin

SSS 2011-01-10

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? The Apollo moon missions ended almost 40 years ago. But for lunar scientists, they're gifts that keep on giving. Researchers studying rocks brought back by ast

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【序言】 各位听众朋友，这里是可可早间课堂。我是Juliet。可可早间课堂给您讲述的是最基础最基本的英语知识，让您在此拥有扎实的基本功。历经20多年来的英语研学，我终于戴上了英语专

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[6] One group, led by John Matese, professor of physics at the University of Louisiana at Lafayette, confirms the notion that it is most likely to be a brown dwarf, a star that never accumulated enoug

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magazine 杂志 periodical 期刊 back number 过期杂志 pre-dated 提前出版的 world news 国际新闻 home news 国内新闻 news agency 新闻社 editor 编辑 commentator 评论员 reporter, c

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Pre-Listening Vocabulary fascinate: to cause great interest mature: to grow periodical: reoccurring at specific times droves: large numbers brood: a group of living things that are hatched or born at the same time emerge: to come out; to appear overl

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