1. There is a direct correlation between exposure to sun and skin cancer. 皮肤暴露在太阳下与皮肤癌直接相关。
2. Correlation, after all, does not prove causation. 毕竟，相关性并不能证明因果关系。
3. One interesting correlation Manton uncovered is that better-educated people are likely to live longer. "曼顿揭示了一个有趣的相关现象：受过良好教育的人可能会更长寿。
4. There were some apparent exceptions to the general correlation observed between adenosine-receptor binding and stimulation. 在腺苷受体结合和刺激之间的一般相关性中，有一些明显的例外。
5. 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。
