Watching this we might assume it isn't intended to be diagnostic of human psychology; rather it's just a way of making a joke at the expense of the main character.
看到这样的剧情，我们可能会觉得这无关乎人类心理，这只不过是调侃剧里的那个演员罢了。
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To find out, they tracked 102, 000 Twitter users over six months, analysing the 140-character-or-less text from 129 million of their tweets with standard techniques from psychology.
A few months ago, I filled out the VIA Survey ofCharacter Strengths by Martin Seligman (founder of Positive Psychology) and the results showed I was moderately optimistic.