今天我们要学的词是 erosion。
Erosion 的意思是侵蚀、腐蚀。
A study last year concluded sediment from erosion following fires would more than double by 2050 for about a third of western watersheds，去年的一项研究表明，火灾后地表侵蚀的沉积物在2050年前将在大约三分之一美国西部水域增加一倍以上。
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3155 erosion
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