translation.en: Now you might look at this result and say, okay, sure, on average people are less happy when they're mind-wandering, but surely when their minds are straying away from something that wasn't very enjoyable to begin with, at least then mind-wandering should be doing something good for us.
translation.zh: 现在看着眼前的结果大家可能会说，好吧，一定是这样， 普遍情况下人们在走神的状态下会觉得不幸福， 但是很有可能当人们的注意力从 一些令人不爽的事情上转移到其它地方时， 至少这个时候走神能让我们觉得快乐一点。