周一是它自从1931年落成之后第十次被打开，泄洪闸使密西西比河的水流向庞恰特雷恩湖。
Monday marked the 10th time it has been opened since the structure was completed in 1931. The spillway diverts water from the Mississippi River to Lake Pontchartrain.
周一是它自从1931年落成之后第十次被打开，泄洪闸使密西西比河的水流向庞恰特雷恩湖。
Monday marked the 10th time it has been opened since the structure was completed in 1931. The spillway diverts water from the Mississippi River to Lake Pontchartrain.
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