In fact, it's 40 degrees this summer. That is to say, you were still with me at 40 degrees last summer, but at 40 degrees this summer, you are no longer with me, so I miss the 40-degree summer last year and you that summer!
extended meaning
This sentence had no special meaning, but Baidu knew that someone had asked this question. On may 1 day, a netizen @jinqilin3977 replied: you miss someone very much, but you have no identity to tell him, so you can only say "it's forty degrees again this summer". Therefore, it was moved to faster cars, Tik Tok and other platforms, and served as a confession copy.