ADJ [ADJ n]非高峰（时间）的；淡（季）的 You use off-peak to describe something that happens or that is used at times when there is least demand for it. Prices at off-peak times are often lower than at other times. 非高峰（时间）的；淡（季）的
The price for indoor courts is £10 per hour at peak times and £7 per hour at off-peak times.
室内球场的价格在高峰时段为每小时10英镑，非高峰时段为每小时7英镑。
...off-peak electricity.
非高峰期电力
Off-peak is also an adverb.
Each tape lasts three minutes and costs 36p per minute off-peak and 48p at all other times.