Finding a cure for cancer has been the white whale of medical research.

寻找癌症的治疗方法一直是医学研究的白鲸。

For many archaeologists, discovering the lost city of Atlantis is their ultimate white whale.

对于许多考古学家来说，发现失落的亚特兰蒂斯城是他们最终的白鲸。