音标：[ˈɔptikəl əˌtenjuˈeiʃən leŋθ ɔv si: ˈwɔ:tə] ；

海水光学衰减长度

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[00:09.33]A:The term is coming to an end! [00:13.61]I wish that the time had not passed so fast! [00:18.21]B:I have the same feeling. [00:21.60]A:And the final examinations are to be taken. [00:27.12]B:Good!It's a good chance to see how well we've do

发表于:2018-12-04 / 阅读(267) / 评论(0)

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发表于:2018-12-04 / 阅读(419) / 评论(0)

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发表于:2018-12-04 / 阅读(909) / 评论(0)

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It was still dark when Kate woke them. Dress warmly, she said. The Aldens hurried into their jeans and sweatshirts. They tied their jackets around their waists. Fruit, juice, and toast awaited them. Kate filled a large thermos. Hot cocoa, she said. I

发表于:2018-12-06 / 阅读(138) / 评论(0)

57 The Mystery in San Francisc

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A salty breeze blew into the tree house. Seagullsscreeched overhead. Jack and Annie looked out thetree house window. They were high in the branches of a gnarled oldtree. The tree was on a sea cliff beneath snowcappedmountains. The mountains overlooke

发表于:2018-12-10 / 阅读(141) / 评论(0)

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发表于:2018-12-13 / 阅读(143) / 评论(0)

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THIS IS AMERICA - Playing in the Sun and Sea at Martha's Vineyard and Nantucket BARBARA KLEIN: Welcome to THIS IS AMERICA in VOA Special English. I'm Barbara Klein. This week on our program, we tell you about two islands in Massachusetts, in the New

发表于:2018-12-16 / 阅读(134) / 评论(0)

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Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Robin Basselin. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 3 Over 60% of our planet is covere

发表于:2018-12-19 / 阅读(162) / 评论(0)

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Voice 1 Welcome to Spotlight. Im Anne Muir. Voice 2 And Im Bruce Gulland. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 1 Aurlie Spadone knows all about

发表于:2018-12-19 / 阅读(156) / 评论(0)

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At the Edge of the Sea The shore is an ancient world, for as long as there has been an earth and se a there has been this place of the meeting of land and water. Yet it is a world that keeps alive the sense of continuing creation and of the relentle

发表于:2018-12-31 / 阅读(234) / 评论(0)

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发表于:2019-01-02 / 阅读(131) / 评论(0)

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Mars Rover Finds Evidence of Ancient Sea David McAlary The U.S. space agency NASA says Mars once had a shallow, salty sea that could have supported life. The evidence has come from chemical and physic

发表于:2019-01-04 / 阅读(150) / 评论(0)

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2015年CRI Shanghai Takes Measures against Rising Sea Levels

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发表于:2019-01-19 / 阅读(163) / 评论(0)

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发表于:2019-02-01 / 阅读(169) / 评论(0)

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Scotch whiskey is said, by some, to have many magical qualities. Now, scientists in Scotland have discovered one more: it can be a weapon against polluted waste sites. A by-product of the spirit is 99.96 percent effective in cleaning contaminated gr

发表于:2019-02-05 / 阅读(173) / 评论(0)

VOA标准英语2008年(十二月)

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语言是相通的，真的如此吗？来看看这些神同步的表达吧~ 1. Blood is thicker than water. 是不是好直白的血浓于水！英文中文真就是一样的哟~ 2. Be able to do something in your sleep. 中文里可以对应我闭着

发表于:2019-02-09 / 阅读(127) / 评论(0)

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Part 6 The Old Man and the Sea 第六部分老人与海 The sun rose thinly from the sea and the old man could see the other boats, low on the water and well in toward the shore, spread out across the current. Then the sun was brighter and the glare

发表于:2019-02-25 / 阅读(131) / 评论(0)

双语有声阅读

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Pre-Listening Vocabulary surrounded: enclosed; to have something on all sides outlet: a means for going out or escaping evaporate: to change from liquid into vapour effortlessly: without trying hard ingest: drink or eat spa: health treatment using mi

发表于:2019-02-27 / 阅读(224) / 评论(0)

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发表于:2019-03-04 / 阅读(464) / 评论(0)

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发表于:2019-03-04 / 阅读(221) / 评论(0)

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