tag along 跟着，跟随

tag 标签；紧随

along 一起；伴随着

When I was a kid, I used to tag along with my brother when he went out with his friends.小时候，我哥跟他的朋友出去玩的时候，我经常会跟着他。

If you are going to the mall, do you mind if I tag along? 你如果是去商场的话，介不介意我跟着啊？