... ②…find it difficult to…：it为形式宾语，to do sth.为真正宾语 expand food production扩大食物生产 fill满足，填满 ...
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International recovery plans include helping Haiti expand food production. But many farmers lost their tools in the quake. Landslides buried equipment.
国际重建方案包括帮助海地扩大粮食生产。但是，许多农民在地震中失去了他们的工具，农业设施为山体滑坡所掩埋。
The third view is that the era of cheap resources is over for good - that we're running out of oil, running out of land to expand food production and generally running out of planet to exploit.
第三种观点是资源的贱价时代已经结束了。我们耗尽了石油，耗尽了产出食物的土地，我们大体上已经走到了掠夺地球资源的穷途末路。
As ecosystems change and deserts expand, food production diminishes, water sources dry up and populations are pressured to move to more hospitable areas.
随着生态系统发生变化，沙漠面积不断扩大，粮食生产日渐减少，水源枯竭，人口也不得不迁移，搬到更适宜居住的地区。
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