Grafting is also used to produce seedless fruits like navel oranges and seedless watermelons.

VOA: special.2010.05.18

Because at some point in here, Delphi really did become the navel of the universe; everybody came.

因为,从某种程度上,特尔斐,确实成了世界的中心,所有人都来这儿

耶鲁公开课 - 古希腊历史简介课程节选

It's halfway up Mount Parnassus and it was thought by the Greeks to be the Omphalos, the navel of the universe, the center in every way. Why?

它坐落在帕尔纳索斯山半山腰上,希腊人称它为Omphalos,是世界之脐,即世界的中心,为什么呢

耶鲁公开课 - 古希腊历史简介课程节选