R3和S3对于极端不稳定的日子可以作为一个好的最大幅度指标。但是偶尔也会被超越。
R3 and S3 are a good indication for the maximum range for extremely volatile days but can be exceeded occasionally.
然而，他们强烈反对由Colom先生妻子Sandra Torres为最贫困人群实施的适度经济调拨项目，这又泄露了社会的极端不稳定。
But their implacable opposition to a modest cash-transfer programme for the poorest, implemented by Mr Colom's wife, Sandra Torres, betrays a complete lack of social solidarity.
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。
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.
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