A 2009 World Bank study found that by increasing soil fertility, a typical flood increases agricultural output in the year after it strikes (though output falls in the year it occurs).

一份2009年的世界银行的报告指出，通过增加土壤的肥沃度，一次典型的洪水在其发生的次年会增加农业产出(虽然在其发生当年产出下降)。

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Richard, who had not thought about having children, also had to think about his future fertility and decided to have some of his sperm stored in a sperm bank before he started chemotherapy.

BBC: 'They told me it wasn't cancer'