There was a serious flood in northeastern China.

在中国的东北有一次严重的洪水。

youdao

Heavy rain will not only wash away the soil but will cause serious flood as well.

大雨不光会冲走泥土，并且也会惹起严峻的水患。

youdao

They met with the most serious flood in twenty years, but none of them suffered from hunger and cold.

他们遇上了二十年来最严重的洪水，但没有一个人挨饿受冻。

youdao

But there is a serious danger from the flood of unskilled, ignorant foreign labor.

VOA: special.2010.05.20

Less serious flood watches, affecting nearly all of England and Wales, indicate that low-lying land and roads could become flooded.

BBC: Parts of UK on flood alert amid heavy rain

The Environment Agency had eight flood warnings in place for England and Wales, and more than 100 less serious flood alerts.

BBC: UK snow: Winter weather causes travel disruption

This concept, enacted in 2007, turned the economic equivalent of a serious flood into a tsunami by relentlessly destroying the ostensible value of our banks' regulatory capital.

FORBES: Magazine Article