もしダムが壊れたら、町全体を氾濫させるだろう。

If the dam were to break, it would flood the entire town.

もし水門を修理しなければ、あなたは大嵐の間に町を浸水させるでしょう。

If you don't repair the gate, you would flood the town during the great storm.

もし嵐が激しくなると、猛烈な雨が町全体を浸水させるでしょう.

If the storm intensifies, torrential rains would flood the entire neighborhood.

もし川を守らなければ、あなたたちは嵐の間に田園地帯を浸水させるでしょう。

If you don’t protect the river, you would flood the countryside during the storm.

もしダムが壊れたら、私たちは数分で谷を浸水させるでしょう。

If the dam breaks, we would flood the valley in a few minutes.