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1. Oxford Dictionary

   flood control

   • n.
     the prevention of the overflow of a large amount of water beyond its normal limits, or the restriction of the effects of such an overflow

   • noun: flood control

2. • 釋義

   n.

   名詞

   • 1. the prevention of the overflow of a large amount of water beyond its normal limits, or the restriction of the effects of such an overflow most of the reservoirs were constructed for flood control