阳光下肆无忌惮的笑月光下歇斯底里哭
[yáng guāng xià sì wú jì dàn de xiào yuè guāng xià xiē sī dĭ lĭ kū]
It paints a poignant picture - one laughs without a care under the sun but cries frantically under the moon. This implies stark contrast of emotions displayed between different environments, showcasing a person who has many facets or masks of emotion in various scenarios.