a·pex
noun/ˈeɪpeks/
/ˈeɪpeks/
[usually singular] (plural apexes)
- the top or highest part of something
顶端；上端 - the apex of the roof/triangle
房顶；三角形的顶点 - (figurative) At 37, she'd reached the apex of her career.
她在 37 岁时达到了事业的巅峰。
Word Originearly 17th cent.: from Latin, ‘peak, tip’. - the apex of the roof/triangle