Don't expend all your time on such a useless job.
不要把时间消耗在这种无用的工作上.
Children expend a lot of energy and may need more high-energy food than adults.
孩子们消耗很多能量，可能比成年人需要更多高能量的食物。
If you give up exercise, your muscles shrink and fat increases. By the same token, if you expend more energy you will lose fat.
停止锻炼会使肌肉萎缩、脂肪增加。同样，如果花更多的精力锻炼，就会减掉脂肪。
Many simply do not want to expend the energy.
来自SA
Nowhere in health care do we expend more resources.
来自NEWYORKER
Considering its great fury the storm took long to expend itself.
来自H. James
He expended all his strength in trying to climb out.
他用尽全力,试图爬出来。 来自《权威词典》
The enemy had expended all their ammunition.
敌人已耗尽所有的弹药。 来自《权威词典》