1、apex：:[ˈeɪpeks] 美语音标:[ˈepɛks]n.顶;顶点;最高点。

2、例句：the apex of the roof/triangle。房顶；三角形的顶点。(figurative) At 37, shed reached the apex of her career.她在37岁时达到了事业的巅峰。