What convinced him to take an ocean voyage this long?

是什么说服他进行这么长时间的远洋航行？

These are sailors of the sky, and what, uh, we've seen and heard today make the great ocean voyages of the earthbound seem...well, earthbound indeed.

他们是太空中的水手，我们今天所取得的成果，为地球在太空中的冒险奠定了基石[地球]。

'All we can say for certain is that the Lapita had canoes that were capable of ocean voyages, and they had the ability to sail them, ' says Geoff Irwin, a professor of archaeology at the University of Auckland.

奥克兰大学考古学教授杰夫欧文说：“我们只能肯定地说，拉皮塔人拥有能够远洋航行的独木舟，而且他们有能力驾驶它们。”