表示“洪水,水灾”的时候是可数的,但表示“大量的,大批的”时候就不可数.如:The local people will never recover after so many floods.A great flood of things appeared on the newspaper. The floods stroked the city many times this year. 总之, flood 一般情况下可数,a flood of可以表示大量,充足的流量或...
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