单词：high expansion material
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. After water, tea is the world's most popular drink. Now three New York City high school students have discovered what maybe a bruing scandal because th
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[00:00.00]4 Did you go on vacation? [00:08.87]Yes,I did. [00:10.14]Where did you go? [00:11.51]I went to France. [00:12.97]Which city did you visit? [00:14.78]I visited Paris. [00:16.44]What did you see? [00:17.92]I saw the Eiffel Tower and the Arc d
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(1)A: We can offer you this in different levels of quality. B: Is there much of a difference in price ? A: Yes ,the economy model is about 30% less. B: Well take that one . A:这产品我们有三种不同等级的品质。 B:价钱也有很大的分别
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Chinese banks extended close to 8 trillion yuan of new lending in the first half of the year, but broad money supply growth has continued a downward trend. China's Central Bank said the figures mirror their efforts of financial deleveraging, aimed at
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China will have a bright new railway services timetables from Sunday. It is the largest expansion in decades involving extensive regions and a range of trains. Beijing Railway Bureau said the capital will run 30 more services, leading to a record hig
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