我们现在的任务是增加粮食产量。
这些国家可以通过开垦新的耕地来增加粮食产量。
These countries could presumably boost food output by taking in some new land.
要增加粮食产量，必须增加对农业的投入，保持适度规模的粮食种植面积。
To raise grain yield it is necessary to increase the investment in agriculture and to ensure proper scale of growing area under grain crops.
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