off-season
noun [ S ] uk/ˈɒf.siː.zən/ us/ˈɑːf.siː.zən/
（商业）淡季
a period of the year when there is less activity in business
We tend to go skiing during the off-season because it's cheaper. 我们常在淡季期间去滑雪，因为价钱便宜一些。
Off-season rates for a double room are about $50 a night. 双人间的淡季价格每晚约50美元。
US（体育）赛季之间
(in sports) the period of the year during which games are not played, between the end of one season and the start of the next