They struggle to grow enough potatoes, maize and rice to feed themselves.

他们勤劳地种植足够多的土豆、玉米和大米来养活自己。

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The conidia which sporulated on wheat head spread to sorghum, maize and rice growing in the field.

小麦抽穗前后，子囊壳成熟形成子囊孢子，传播至正在开花的小麦穗部引起侵染。

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In the tropics, the warmest temperatures will cut maize and rice harvests by 20 to 40 percent, the researchers said.

研究人员称，极端高温将导致热带地区的玉米和米产量下降20%至40%。

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In certain location things were dominated by certain cereals; rice in Asia, wheat in Europe, sorghum and millet in Africa, and maize in the New World.

不同的地方有不同的主食,比如,亚洲主食米饭,欧洲主食小麦,非洲主食高粱和小米,美洲主食玉米

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

In the tropics, the higher temperatures could be expected to cut yields of the primary food crops, maize and rice, by 20-40%, the researchers said.

BBC: Heat may spark world food crisis

Deep in the jungle of southern Burma (Myanmar) live 40, 000 villagers who tend to maize and rice farms, raise livestock and fish in the rivers.

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They predict that the world's three biggest crops in terms of calories provided - maize, rice and wheat - will decrease in many developing countries.

BBC: Bananas could replace potatoes in warming world