dwell onsth
—phrasal verbwithdwellverb[Iusually+ adv/prep]formaluk/dwel/us/dwel/dweltordwelled|dweltordwelled
C1
tokeepthinkingortalkingabout something,especiallysomethingbadorunpleasant
老是想着，一直在说（尤指不好或令人不快之事）
In hisspeech, hedwelton theplightof thesickand thehungry.演讲时他一直在说遭受疾病和饥饿折磨的人们所处的困境。