Souvenirs are usually small items, or trinkets that remind people of an experience.

VOA: standard.2010.02.17

And so people definitely go down there to pick up some items that they can't get at Tom Ford or Diesel.

所以人们一定是去那儿采购一些在汤姆•福特和狄塞尔买不到的东西。

关于SOHO - SpeakingMax英语口语达人

The article "an" or "a", you use when you're talking about like either a general category of items or

冠词中，“an”或“a”，是当你谈论那些一般的或者可选择的条目时用的，

经常犯的失误 - SpeakingMax英语口语达人