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| 作者姓名： | 万柯 |
| 作者单位： | |
| 摘 要： | Clouds vary(变化) in shape according to their height and temperature, and they contain minute(微小的) drops of water or ice particles(微粒) or a combination(混合体) of both. And, of course, their formation(构成) is greatly affected by wind changes. |
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