更近些时候，当2008年食物价格飙升时，一些国家开始增加出口禁令或增加出口税，从而使进口国迫切希望自给自足。
More recently, when food prices shot up in 2008, some countries started to impose export bans or taxes, leading importers to hanker for self-sufficiency.
更近些时候，当2008年食物价格飙升时，一些国家开始增加出口禁令或增加出口税，从而使进口国迫切希望自给自足。
More recently, when food prices shot up in 2008, some countries started to impose export bans or taxes, leading importers to hanker for self-sufficiency.
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