The sun is shining brightly today. Rain clouds are gathering on the horizon. The temperature dropped significantly overnight., Water evaporates from oceans and lakes into the sky. The water vapor forms clouds that produce rain. Rain falls back to Earth and flows into rivers and oceans., There are three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks form when melted rock cools and hardens, like granite or volcanic lava. Sedimentary rocks are made from layers of sand, mud, and other materials that get pressed together over time.,

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快閃記憶體卡是一個開放式範本。它不會為排行榜生成分數。

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