Extensive flooding in the country has delayed planting and many crops are still under water.

该国大范围的洪水已经延误了栽种，许多庄稼现在还泡在水中。

《柯林斯英汉双解大词典》

Heavy rains and overflowing rivers have caused extensive flooding in some parts of the US midwest and in eastern regions of the US as well.

暴雨和泛滥的河流在美国中西部和东部地区造成了大面积的洪水。

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Larger sea level rises would result in extensive flooding of lowland beaches, wetlands, and coastal settlements.

海平面再升高一些就会给低地的海滩、湿地、和沿海居民带来特大洪灾。

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And on the other hand, if the monsoon is particularly heavy it can cause extensive flooding.

VOA: special.2010.05.25

There has also been extensive flooding in the southeastern part of Iceland as parts of a glacier were melted by the volcano.

VOA: standard.2010.04.15

Chan says extensive flooding may lead to loss of life from drowning and disease.

VOA: standard.2010.01.02

They are usually stationed in another region that has seen more extensive flooding in the past.

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Further North, Jersey City and Hoboken reported extensive flooding throughout their downtowns.

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Anne McIntosh, Tory MP for the Vale of York which suffered extensive flooding, raised the issue in the Commons on Wednesday.

BBC: Clampdown on flood risk housing