留美老师带你每天说英文 第439期:基因决定你是否乐观

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台湾籍旅美老师今天交给我们的句子是：

But, statistically, most of us are hardwired to lean towards optimism. Known as the optimism Bias and found in around 80% of the population, we tend to overestimate the probability of positive events occurring in the future, while grossly underestimating the probability of negative ones.
但是，数据显示，大多数人生来就较为乐观。这个现象被称为"乐观偏见"，80%的人都是如此，我们倾向于相信未来会发生的事会是好的，并且忽略负面事情的可能性。