As the song ends, we're reminded that Mack is not just a killer – he's what we might describe as a " serial killer." " Serial" (serial) means several things in a row, one after another.

随着歌曲的结束，我们被提醒 Mack 不仅仅是一个杀手——他是我们可以形容为“连环杀手” 的人。