鸳鸯不是在哪都能戏水
[yuān yāng bù shì zài nă dōu néng xì shuĭ]
In Chinese culture, mandarin ducks (yuan yang) symbolize loving couples. This phrase suggests that even for loving pairs, it’s not always safe or possible to be openly affectionate anywhere, hinting at constraints or limitations in showing public displays of affection.