鱼念七秒我念七年
[yú niàn qī miăo wŏ niàn qī nián]
Fish Remember for Seven Seconds; I'll Keep Thinking of You for Seven Years. In folklore, a fish has only a seven-second memory span, which here serves as a counterpoint to the user who claims to miss someone for seven years, reflecting how profoundly he or she remembers someone compared to a fish.