salad days可不是色拉日，其实是指年少不懂事的青春期，后常被引申为无忧无虑、快乐、青春的日子；少不更事时期。

【例句】
John was in his salad days then and fell in love easily.
约翰当时少不更事，容易地坠入情网。

When I was in my salad days, I did a lot of dumb things.
在我年少不懂事时，我做了不少蠢事。