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卡思特山脉作为气候分水岭，其树木繁茂的西部的降水量比山脉东部干土平原可多达二十倍。

1,The high-speed trains created by our country can travel at a speed of 350 kilometers per hour. 2, It will be safer, cozier and roomier with a larger capacity to hold passengers. 3, In terms of land occupation, it takes up only half of what is taken by highway. 4,Besides, it is environmentally friendly. 5, Not only is it energy-saving, it also produces less noise.