意志力 willpower ; will ; Hardiness

意志力缺乏 abulia

意志力的短缺 Power Shortage

意志力科学 The Science of Willpower

意志力薄弱 Akrasia ; weakness of will ; weak-willed

锻炼意志力 Exercise will power ; temper your willpower

意志力丧失 aboulia ; abulia

用意志力使 will

意志力超强 strong-willed