[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
三角形的頂點
apex of a cone
圓錐體的頂點
at the apex [zenith] of one's career
事業達到頂點
His misfortunes culminated in his bankruptcy.
他的厄運達到了頂點， 終于破產。