低声吟咏；迟疑不决；深思；低声自语to recite to oneself; to be unable to make up one's mind; to ponder; to mutter to oneself

• 沉吟诗句

  recite poetry under one's breath

• 沉吟不决

  struggle to make up one's mind

• 他沉吟了半晌才说。

  He pondered for a bit before speaking.

• 独自沉吟

  mutter to oneself