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The rock called sandstone is made up of a great many grains of sand. The beating of the rain on this rock washes the grains apart, and so the hard sandstone slowly changes into loose sand. 砂岩主要由大量沙粒组成。当雨水打下来的时候
Selena Gomez-Love You Like A Love Song 赛琳娜戈麦斯,台湾译:赛琳娜戈梅兹;美国歌手和演员,生于德克萨斯州Grand Prairie小镇,被称为Miley Cyrus最强劲的对手。6岁开始对表演产生兴趣,7岁出演美国著
Selena Gomez--Love You Like A Love Song 赛琳娜戈麦斯,台湾译:赛琳娜戈梅兹;美国歌手和演员,生于德克萨斯州Grand Prairie小镇,被称为Miley Cyrus最强劲的对手。6岁开始对表演产生兴趣,7岁出演美国
岩石圈LITHOSPHERE 固态地球SolidEarth 洞穴Caves 地震活动Seismicactivity 地震监测Seismicmonitoring 火山Volcanoes 风蚀Winderosion 陆地生态系统TERRESTRIALECOSYSTEMS 土壤Soils 农
The renewable resource now provides a quarter of the electricity Ireland consumes every year. 现在每年提供爱尔兰电力消耗的四分之一是可再生资源。 Eirgrid, a state-owned company which manages the grid in both Northern Ireland a
Europe 欧洲 Energy in Ireland: Bog down, wind up 爱尔兰能源:停顿,关闭 Ireland is ditching peat for energy from wind. 爱尔兰正从泥炭能源转向风能。 Peat has a lot to recommend it. 这个岛国的目标是成为电力净出口