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。
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.
但是， Info项还值得一提，因为如果还不熟悉 DTD，则它对研究您的 DTD是有用的。
The Info items are worth a mention, however, because they can be useful for exploring your DTD if not already familiar with it.
作为一本有影响力的文学作品，这本书还值得进一步研究，甚至即使你忽略这个绝妙的香格里拉世界，这本小说仍能给你带来愉悦的阅读体验。
It is underrepresented for such an influential piece of literature, and it is a very enjoyable read even ignoring the wonderful world of Shangri-La. [read it here.]
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