To take an extreme example, farmlands dominated by a single crop are so unstable that one year of bad weather or the invasion of a single pest can destroy the entire crop.
举个极端的例子，以单一作物为主的农田是如此不稳定，一年的坏天气或单一害虫的入侵可以摧毁整个作物。
A bad bout of cold weather, a long spell of frosts could ruin a farmer's entire crop.
一场恶劣的寒冷天气和长时间的霜冻都可能会毁掉一个农民的全部收成。
Agricultural commodities prices have surged following a series of crop failures caused by bad weather.
由于受到恶劣天气影响，农作物一再歉收，农产品价格出现大幅上涨。
This year's harvest is bad news for documentary makers, because we're bringing in a tremendous crop.
今年的收成对于纪录片制作来讲，是一个坏消息，因为我们收获了大量的粮食。
The recent surge in sugar prices comes after a bad harvest, that of corn after official warnings of a lower-than-expected crop.
最近，蔗糖由于收成不好价格也大幅上涨，官方宣布玉米的预期收成也会降低后，玉米的价格也大幅上涨了。
Around 1850, a terrible disease hit the potato crop, and potatoes went bad in the soil.
大约1850年，一场可怕的病害袭击了马铃薯，因而马铃薯在地里变坏了。成千上万的人死于饥饿。
If there is a bad coffee crop in Brazil, the price of breakfast goes up in Vienna and Warsaw.
如果有一个坏的咖啡总产量在巴西，价格上升在维也纳的早餐，华沙。
If the crop products are short of some elements required by human body, a person taking them as food may be in bad health.
作物产品中若缺少人体健康所需的某些元素，那么以这些作物产品为食物的人的健康就会受到影响。
If the crop products are short of some elements required by human body, a person taking them as food may be in bad health.
作物产品中若缺少人体健康所需的某些元素，那么以这些作物产品为食物的人的健康就会受到影响。
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