单词overoptimism
网络: 过度乐观；过度樂观
In equities, the widespread sell-off may have been a reaction to the overoptimism that prevailed earlier this year.
而随处可见的股票抛售行为可能是支持今年早些时候盛行的乐天派观点那些人的反应。
But if overoptimism is a human curse, so is excessive pessimism.
但是，如果说过度乐观是人类身上的魔咒，过度悲观同样也是。
But they did make one avoidable mistake that led directly to their overoptimism.
但是他们的确犯了一个能够避免的错误，这个错误直接引导他们过于乐观。