willpower

名词 willpower:

1. the trait of resolutely controlling your own behavior
   同义词：self-control, self-possession, possession, self-command, self-will

1. He hasn't the willpower to stop eating so much.
   他缺乏意志力，克制不住自己的贪吃。

willpower 或 will pow.er

n.（名词）
The strength of will to carry out one`s decisions, wishes, or plans.
意志力，毅力：实现自己的决定、愿望或计划的意志力量