Rainfall fell by 50-percent in areas along the Huaihe River during the first four months of the year, and crops are now under severe threat.

今年第一季度，淮河地区的降雨量就下降了50%，而且如今庄稼受到严重的威胁。

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Whether to set up a South China Sea ADIZ or not depends on whether China's airspace security is under threat or not, how severe the threat is, coupled with other factors.

中方将来是否划设“南海防空识别区”取决于空中安全是否受到威胁、威胁程度及其他各方面因素。

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The ancient city of Timbuktu is a UNESCO World Heritage site of huge cultural significance, but its carefully preserved heritage has come under severe threat amid the ongoing conflict.

CNN: French, Malians seize town from Islamists

Hennen says that puts another 44 million people under threat of some kind of severe weather.

CNN: Bracing for Round 3: 53 million under severe weather threat

The Iraqi regime, under military threat and the pressure of severe economic sanctions, has permitted this intrusion and allowed UNSCOM inspectors access to its facilities and personnel to a remarkable degree.

CENTERFORSECURITYPOLICY: Chemical Reaction