apex of dens

例句：

1. 1.The apex of the mountain isvisible from here.
   从这儿可以看到山顶。
2. 2. Theapex of the competition is alwaysthe most intense.
   竞争的顶点总是最激烈的。
3. 3. The apex of the seasonis usually the warmest part of theyear.
   季节的顶点通常是一年中最温暖的部分。