[dǐng diǎn]
apex; zenith; acme; vertex; corner; tiptop; pinnacle; acnode; perfoot; top; grand climax; full; sum; crank point; culmination; sharp peak; sticking place
vertex [apex] of a triangle
三角形的顶点
apex of a cone
圆锥体的顶点
at the apex [zenith] of one's career
事业达到顶点
His misfortunes culminated in his bankruptcy.
他的厄运达到了顶点， 终于破产。