peak half-width

例句：

1. 1.The peak of the mountain is visible fromhere.
   从这儿可以看到山顶。
2. 2. Theclimber reached the peakof the mountain in record time.
   登山者以创纪录的时间到达了山顶。
3. 3. The peak of the season isalways the best time to visit.
   季节的最高点总是参观的最佳时间。