上周，世界粮食危机出现了一丝希望。
There was, last week, a glimmer of hope in the world food crisis.
非洲之角的干旱和饥荒显示了生物燃料生产的一个后果：世界粮食危机。
Drought and famine in the Horn of Africa have exposed further a negative consequence of biofuel production: the global food crisis.
两年前最严重的世界粮食危机期间，数以百万人遭遇了这种情况。
That happened to millions of people two rs ago at the height of the world food crisis.
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