说不出的温柔道不尽的缠绵
[shuō bù chū de wēn róu dào bù jĭn de chán mián]
'说不出的温柔道不尽的缠绵' can be understood as 'An unspeakable gentleness and indescribable entanglement,' indicating emotions too complex or tender to describe, especially those related to deep affection.