n.奠基石( cornerstone的名词复数 )，基础，最重要部份，柱石...

cornerstones的音标：...

They are the cornerstones of computations of the airlines'massive reservations system.他们是航空大规模预订系统的基石.Will, work and wait are the pyramidal cornerstones for success.意志 、 劳动和期待,是成功金字塔的基石.Interdisciplinarity is one of...