猫有七条命但只有一次选择鱼有一条命只有七秒的记忆
[māo yŏu qī tiáo mìng dàn zhĭ yŏu yī cì xuăn zé yú yŏu yī tiáo mìng zhĭ yŏu qī miăo de jì yì]
This nickname suggests that while cats have nine lives but only one true decision-making moment, fish, on the other hand, have a short life and can only remember for seven seconds. It metaphorically implies fleeting moments and choices.