[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。