有笑有泪的三年在回忆中
[yŏu xiào yŏu lèi de sān nián zài huí yì zhōng]
Means 'In memories, there are laughs and tears over the past three years.' Suggests looking back nostalgically at high school days full of happiness and challenges; perhaps a tribute to those memorable years in youth where both joys and sorrows coexisted.