When adults do this, if I went to a family reunion, and my brother started to repeat everything I said after I said it, I would probably say, "Grow up, stop doing that. It's really, really annoying."
但如果成年人這樣做時,假如我去參加一個家庭聚會,我弟開始重複每一句我說的話。我可能會說「成熟點,不要再這樣做了。 這真的非常討人厭。」