fixation

例句：

1. 1. The patient's fixation on the past made it difficult for her to move forward.
   病人对过去的执着使她难以向前看。
2. 2. The scientist's fixation on finding a cure for cancer led him to neglect his family.
   科学家对找到癌症治疗方法的执着使他忽视了家庭。
3. 3.The artist's fixation on perfection drove him to create works that were never truly finished.
   艺术家对完美的执着驱使他创作出从未真正完成的作品。