exertion

剑桥词典

exertion noun (EFFORT)

[ 可数名词：有复数形式的名词 or 不可数或单数名词：没有复数形式的名词 ]
the use of a lot of mental or physical effort
尽力；努力；费力
I get out of breath with any kind of physical exertion. 我一干点体力活就上气不接下气。
We were exhausted after our exertions. 我们用尽全力，最后个个精疲力尽。

exertion noun (USE)

[ 不可数或单数名词：没有复数形式的名词 ]
the use of something such as authority , power , influence , etc. in order to make something happen
运用；行使（权威、权力等）；施加（影响等）
the exertion of influence over who was appointed to the job 对于被授予该职位的人施以影响 返回 exertion