It is also important to note that the study found only a correlation, as researchers did not prove for certain that optimism leads to a longer life.

还值得注意的是，该研究只是发现了一种关联，因为研究人员并不能明确证明乐观与长寿有必然联系。

youdao

Those in the control group not only didn't see a grade increase, they had lower grades than the grading before the study began.

对照组的学生不仅成绩没有提高，而且比研究开始前的成绩还要低。

youdao

It's not only the study of human population, but the populations of non-human species, including viruses.

这不仅是对人类种群的研究，也是对非人类种群（包括病毒）的研究。

youdao

Only two areas did not have an overfishing problem in either the new study or the earlier one.

VOA: special.2009.09.08

Needless to say, the satisfaction of John Milton, Sr. will have to be postponed to the great hereafter. He will not be able to reap the profit of his investment in his son's study until not only after his own death, but of course after his son's death as well. That's Milton's logic here.

这个名字已经历经了好几个世纪，不用怀疑,弥尔顿父亲的赔偿会继续延续下去,但他却不能在有生之年享受到他对儿子支持的回报，在弥尔顿死后也一样享受不到，这就是弥尔顿的逻辑。

耶鲁公开课 - 弥尔顿课程节选

This study shows that not only is it better for the person who is infected, but it helps that person from transmitting to the person that's their sexual partner, heterosexual partner."

VOA: special.2011.05.18

At the end of the study, not only did the patients think they got better pain relief from the former, says Landgraf, they actually got better pain relief from the former.

FORBES: The 'Sons of Anarchy' Network Poised To Push The Envelope Further

The study found that not only are high potential women developing others, compared to their male counterparts, the women were actually more likely to be developing women.

FORBES: To Get Ahead, Help Develop Others' Careers

The Nakd Apple Pie was the only bar in the study that did not contain any added sugar, while the Alpen Light Apple and Sultana was the only one to have three green traffic lights for fat, saturated fat and salt.

BBC: Cereal bars: Healthy image a myth - Which?