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I'm usually fairly skeptical about any research that concludes that people are either happier or unhappier or more or less certain of themselves than they were 50 years ago.

我通常相当怀疑任何断定人们比五十年前更快乐或者不快乐，或者更多或更少认识他们本身的研究。

I'm usually fairly skeptical about any research that concludes that that people are either happier or unhappier or more or less certain of themselves than they were 50 years ago.

我通常相当怀疑那些得出人们比50年前的人更快乐或更不快乐，更自信或更不自信的结论的研究。

I'm usually fairly skeptical about any research that concludes that people are either happier or unhappier or more or less certain of themselves than they were 50 years ago.

我经常相当怀疑一些断定现在的人们比50年前更快乐也更不快乐而且对他们自己更不确定的研究。

I'm usually fairly skeptical about any research that concludes that people are either happier or unhappier or more or less certain of themselves than they were 50 years ago.

许多调查说我们现在的人要比50年前更幸福，或者更痛苦，或者多多少少更加确定自己。我一直都是很怀疑这些结论的。

I'm usually fairly skeptical about any research that concludes that people are either happier or unhappier or more or less certain of themselves than they were 50 years ago.

我经常相当怀疑任何关于与50年前相比人们更快乐或者不快乐或者有一点不确定的结论的研究。

I'm usually fairly skeptical about any research that concludes that people are either happier or unhappier or more or less certain of themselves than they were 50 years ago.

我经常非常的怀疑那些调查研究结果，那些结果是现在的人比50年前的人更快乐或者更不快乐，更自信或者更加不自信。

I'm usually fairly skeptical about any research that concludes that people are either happier or unhappier or more or less certain of themselves than they were 50 years ago.

我通常相当怀疑的任何研究得出结论认为，人是不是更快乐或不快乐或或多或少自己一定比50年前。

I'm usually fairly skeptical about any research that concludes that people are either happier or unhappier or more or less certain of themselves than they were 50 years ago.

我通常相当怀疑的任何研究，得出结论认为，人如果不是快乐或不快乐或或多或少自己一定比50年前。

I'm usually fairly skeptical about any research that concludes that people are either happier or unhappier or more or less certain of themselves than they were 50 years ago.

我经常客观的怀疑一些研究，那些结论关于人的高兴或者不高兴或者差不多某种程度上与他们50年以后的比较。

I'm usually fairly skeptical about any research that concludes that people are either happier or unhappier or more or less certain of themselves than they were 50 years ago.

我通常是相当怀疑的关于比他们50年前认为的所有研究，人们是更加愉快或更加怏怏不乐的或更较不确信他们自己。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。