求翻译：　　意大利帕维亚大学的研究表明，促使男女一见钟情的是人体血液内的“爱情因子”——神经生长因子在作怪，当一见钟情开始时，人体血液中神经生长因子数量远远多于没有恋爱或者说已经结婚的人，但这些一见钟情的男女不到一年后，他们体内的爱情因子就会降至普通人的水平。所以，男人对花瓶女人的爱多是来也匆匆去也匆匆。是什么意思？

University of Pavia, Italy, studies have shown that women and men in love at first sight is the "love factor" in human blood - nerve growth factor at play, when love at first sight at the beginning, the number of nerve growth factor in human blood is far more than there is no love or married, but me

- a maximum of one year.

　　The Italian Pavey's Asia University's research indicated that, urges the men and women to fall in love is in the human body blood “love factor” - - the nerve growth factor in the unseemly behavior, when falls in love starts, in the human body blood nerve growth factor quantity by far is more than

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