疼痛是令人不愉快的感觉，它使患者惧怕甚至放弃正畸治疗。

Pain is a terrible feeling, which can make one horrid, even give up orthodontic treatment.

youdao

疼痛是令人不愉快的感觉，它使患者惧怕甚至放弃正畸治疗。

Pain is a terrible feeling, which can make one horrid, even give up orthodontic treatment.

youdao