单人床的缠绵双人床的寂寞
[dān rén chuáng de chán mián shuāng rén chuáng de jì mò]
'The lingering affection on single bed and loneliness on double bed' indicates contrasts. On the single bed, though alone, the owner feels warm and close to their own heart, maybe filled with pleasant memories or imagination; but on the larger one, designed for two, being only one makes loneliness become palpable