他正努力到达山顶。

He is striving to reach the ___summit.

他成功地登上了山顶。

He successfully reached the mountain ___summit.

两国总统将在下周举行峰会讨论贸易问题。

The two presidents will hold a ___summit next week to discuss trade issues.

赢得奥运会金牌是他运动生涯的巅峰。

Winning the Olympic gold medal was the ___summit of his athletic career.