21. I've also travelled a bit, you know, off season when every where is less crowded and hotels cost less.

点睛

谈到旅行时，常会谈到旺季和淡季等相关内容，本句中的off season（淡季）正是听力的难点所在。off season除了指“旅游淡季”，还可以用于表示商业上的淡季、运动方面的停赛季等，也可以用low season表示“淡季”。与off/low season相对的则是peak/high season（旺季）。

考点归纳

听力口语中与season相关的表达还有：
at seasons意为“时时，不时地”。如：
His wife loses temper at seasons just because of trivial matters. 他老婆常常因小事而发火。
come into season意为“上市”。如：
Grapes will soon come into season. 葡萄不久就会上市。
in season意为“正合时令；上市；及时”。如：
Watermelons are now in season. 西瓜现在正当时令。
out of season意为“不合时宜；过了旺季；已经下市”。如：
A good maxim is never out of season. 至理名言不会过时。