1 N-COUNT [usually singular] 顶点；顶峰 The peak of a process or an activity is the point at which it is at its strongest, most successful, or most fully developed. 顶点；顶峰
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The party's membership has fallen from a peak of fifty-thousand after the Second World War. [+ of]
二战后该党党员人数已从5万人的峰值下降了。
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The bomb went off in a concrete dustbin at the peak of the morning rush hour. [+ of]
在最繁忙的交通早高峰期，那枚炸弹在一个混凝土垃圾箱里爆炸了。
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...a flourishing career that was at its peak at the time of his death.
他去世时正处于巅峰的欣欣向荣的事业
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Economies have peaks and troughs.
经济有高峰，也有低谷。
SYN high point, crown, climax, culmination
2 VERB 达到顶点；达到顶峰；达到最高值 When something peaks, it reaches its highest value or its highest level. 达到顶点；达到顶峰；达到最高值
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Temperatures have peaked at over thirty degrees Celsius. [VERB + at]
温度最高达30摄氏度以上。
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The crisis peaked in July 1974. [VERB]
那场危机在1974年7月达到巅峰。
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His career peaked during the 1970's. [VERB]
他的事业在20世纪70年代达到顶峰。
SYN culminate, climax, come to a head, be at its height
3 ADJ [ADJ n] （水平、价值）最高的，最大的 The peak level or value of something is its highest level or value. （水平、价值）最高的，最大的
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Calls cost 36p (cheap rate) and 48p (peak rate) per minute.
电话每分钟36便士（优惠费率）和48便士（高峰费率）。
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We bought it at the wrong time and paid the peak price.
我们买的时机不合适，买了个最高价。
4 ADJ [ADJ n] 高峰的；高峰期的 Peak times are the times when there is most demand for something or most use of something. 高峰的；高峰期的
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It's always crowded at peak times.
高峰期总是非常拥挤。
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During peak periods, reservations are difficult to make at some of the hotels.
在高峰时期，有些酒店很难预订到房间。
6 N-COUNT 山峰；山顶；山巅 A peak is a mountain or the top of a mountain. 山峰；山顶；山巅
SYN point, top, tip, summit
7 N-COUNT 帽舌；帽檐 The peak of a cap is the part at the front that sticks out above your eyes. 帽舌；帽檐
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