the spirit is willing, but the flesh is weak
said when you would like to do something, but you do not have the time, skills, or energy necessary to do it
心有余而力不足;力不从心
A: Have you started the diet your doctor recommended?
你开始按医生建议的饮食了吗?
B: Every year I resolve to eat better and do more exercise; and every year, inevitably, the spirit is willing, but the flesh is weak.
每年我都下定决心要吃得更好,多做运动;每年都免不了心有余而力不足。
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