top lap

例句：

1. 1. The top lap of the mountainis the highest point on it.
   这座山的顶部是它最高的点。
2. 2. The team reachedthe top lap in the race.
   队伍在比赛中达到了最高点。
3. 3. The climber reached thetop lap of the mountain.
   登山者达到了山顶的最高点。