His love for his young wife could only be the stronger of the two if it could link itself with his love of science.

VOA: special.2009.09.26

Quest, question, there is no coincidence that there is an etymological link between the two.

探索，问题，这两者在词源上有所关联并非巧合。

哈佛公开课 - 幸福课课程节选

Two years ago, a European study showed a link between pesticide use and Parkinson's.

VOA: special.2009.04.07