他们在20世纪60年代曾一起工作，自那时起就一直保持着联系。
They worked together in the 1960s, and have kept in contact ever since.
公元一世纪，老普林尼曾写过用海胆的灰烬治疗来秃头。
In the first century A.D., Pliny the Elder wrote of using sea urchin ashes to treat baldness.
弗罗比舍是一位16世纪的英国探险家，曾对来自加拿大 Kodlunarn 岛的土壤样品进行了含金量检测。
Frobisher, a sixteenth-century English explorer, had soil samples from Canada's Kodlunarn Island examined for gold content.
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