1. Overwhelming lassitude (压倒性的疲惫)
2. Chronic lassitude (慢性疲劳)
3. Mental lassitude (精神疲劳)
4. Physical lassitude (身体疲惫)
5. Extreme lassitude (极度疲劳)
6. Debilitating lassitude (削弱的疲劳)
7. Persistent lassitude (持续的疲劳)
8. Generalized lassitude (全身乏力)
9. Profound lassitude (深度疲劳)
10. Overcoming lassitude (克服疲劳)
11. Unexplained lassitude (莫名其妙的疲劳)
12. Mental and physical lassitude (精神和身体的疲劳)
13. Lassitude and lethargy (疲劳和倦怠)
14. Feeling of lassitude (疲倦感)
15. Lassitude after exertion (运动后的疲劳)
16. Recurring lassitude (反复出现的疲劳)
17. Lassitude and lack of motivation (疲倦和缺乏动力)
18. Lassitude and sleepiness (疲倦和嗜睡)
19. Sudden onset of lassitude (突然出现的疲劳)
20. Lassitude and muscle weakness (疲劳和肌肉无力)