鱼七秒记忆我七年痛痒
[yú qī miăo jì yì wŏ qī nián tòng yăng]
The phrase alludes to the widely believed myth that fish have only a three or seven-second memory, symbolizing forgetfulness, yet 'seven years of pain or discomfort', is a prolonged human emotional state, often heartbreak or sadness, contrasting with the fish's perceived forgetfulness