apex.

常见例句

The growing apex or main shoot of a shrub or tree.
顶枝灌木或乔木的生长顶端或主要新梢
APEX tickets are usually not open.
预售优惠票预定的搭乘日期通常不能更改。
He reached the apex of power in the early 1930s.
他在三十年代初达到了权力的顶峰。
It has leaf primordia and a shoot apex.
它有叶原基和一个苗端。
Having the shape of a cone resting on its apex.
陀螺形的形状象陀螺或倒置的圆锥的
He was at the apex of his fortunes.
他红运到顶。