Cobweb 是蜘蛛网，英语中有一个比喻“blow the cobwebs away 把蜘蛛网吹走”。根据不同的语境，可以理解为“出去透透气，清醒一下”或者“除旧布新，振作精神”。我们也可以用“clear out 清理”或“clear away 清除”来替代这个表达中的“blow away 吹散”，意思是一样的。

例句

We've been sitting down all day, time to get out and clear the cobwebs away.

我们已经坐了一整天，该出去透透气了。

I haven't done yoga for ten years, so in my first session, I'll just be clearing out the cobwebs. In session two, I'll be much better.

我十年没练过瑜伽了，所以在第一小节，我会先振作精神。这样到了第二节，就会更熟练了。

The football team were a bit tired at the end of last season. The coach is hoping they will blow the cobwebs away in the new season.

这个足球队在上赛季末略显疲劳，教练希望队员们在新的赛季能打起精神，焕然一新。