作业一字没动少年你真冷静数学一题未解菇凉你真淡定
[zuò yè yī zì méi dòng shăo nián nĭ zhēn lĕng jìng shù xué yī tí wèi jiĕ gū liáng nĭ zhēn dàn dìng]
This phrase humorously mocks students who are extremely calm ('You didn't touch your homework at all, but you are really calm; You couldn’t solve a single math problem but you remain very composed'). It shows the laid-back or carefree attitude in face of unfinished assignments or exams.