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