医生，我最近睡眠不足，上课也很困倦，无法集中注意力。

Doctor, I haven't been able to get enough sleep lately, and I'm too tired to concentrate in class.

youdao

医生，我最近睡眠不足，上课也很困倦，无法集中注意力。

Doctor, I haven't been able to get enough sleep lately, and I'm too tired to concentrate in class.

youdao