apex

奥运会开幕式是这个体育盛事的最高潮。

The opening ceremony was the ___apex of the Olympic Games.

要正确过弯，你需要在恰当的时机切到弯心。

To take the corner correctly, you need to hit the ___apex at the right moment.

太阳在正午时分到达天空的最高点。

The sun reaches the ___apex of the sky at noon.