Growth, reproduction, and daily metabolism all require an organism to expend energy.
生长、繁殖和日常的新陈代谢都需要有机体来消耗能量。
They do not want to expend energy in what, to them, is a lost cause.
他们不想把精力投到他们认为注定不会成功的事中去。
Children expend a lot of energy and may need more high-energy food than adults.
孩子们耗能多，可能比成人需要更多高能量的食物。
But many do not expend the extra effort.
但许多人不会去付出这种额外的努力。
Don't expend all your energy on such a useless job.
不要把你的精力全花在这无益的工作上。
Every effort seemed to expend her spirit's force.
每一次努力看上去都耗尽了她的精神力量。
You don't need to expend that much time in watching TV.
你没必要花那么多时间在看电视上。
They expend all their strength in trying to climb out.
他们费尽全力想爬出来。
Take control of the situation and expend your energy elsewhere.
控制住局面并将精力转移到别处去。
Neither entity wanted to expend the time or money to develop their own standard.
没有经济实体想要花时间或金钱来开发它们自己的标准。
Nobody realizes that some people expend tremendous energy merely to be normal.
谁也没察觉到有些人耗费了极大的精力，仅仅只为了显得正常。
Why expend time and energy in activities that fail to increase reproductive success?
为什么花时间和精力去做不能提高繁殖率的事情？
Why expend time and energy in activities that fail to increase reproductive success?
为什么花时间和精力去做不能提高繁殖率的事情？
应用推荐