名词
1. （机构、体系的）最高地位，最高职位
The apex of an organization or system is the highest and most important position in it.
2. 尖端；顶点
The apex of something is its pointed top or end.
1. the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars
Synonym: solar apexapex of the sun's way
2. the highest point (of something)
e.g. at the peak of the pyramid