apex/ˈeɪpeks; `epɛks/ n(pl ~es or apices / ˈeɪpɪsi:z;`epɪˌsiz/) top or highest point 顶点; 最高点 the apex of a triangle 三角形的顶点 (fig 比喻) At 41 he'd reached the apex of his career. 他41岁时到达事业的顶峰.
牛津英汉双解词典