Out on the open plains, those stony walls give way to soft soil, allowing rivers to shift their banks and set their own ever-changing courses to the sea:courses that almost never run straight.
到了开阔的平原石壁被柔软的土壤取代，河岸地势逐渐提高并由此奔向大海：但奔流时从不走直路。
Out on the open plains, those stony walls give way to soft soil, allowing rivers to shift their banks and set their own ever-changing courses to the sea:courses that almost never run straight.
到了开阔的平原石壁被柔软的土壤取代，河岸地势逐渐提高并由此奔向大海：但奔流时从不走直路。
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