exertion

名词 exertion:

1. use of physical or mental energy; hard work
   同义词：effort, elbow grease, travail, sweat

1. Physical or mental exertion, especially when difficult or exhausting; work.
   劳动体力或脑力的运用，尤指出现困难或精疲力尽时; 工作
2. He failed to lift the rock in spite of all his exertions.
   他虽竭尽全力，但仍然未能将那石头搬起来。
3. Now that I'm 90, I find the exertions of travelling too great.
   我已经年届90, 出远门已力不从心。

ex.er.tion

n.（名词）
The act or an instance of exerting, especially a strenuous effort.See Synonyms at effort
发挥：运用的行为或事例，尤指全力以赴的努力参见 effort