exertion
/ɪgˈzɜːʃən/noun
mass noun
1
- physical or mental effort努力; 尽力; 费力：
she was panting with the exertion
她因拼命使劲而喘着气
count noun a well-earned rest after their mental exertions.他们在动了那么多脑筋后应得的休息。
2
- the application of a force, influence, or quality运用; 行使; 发挥; 施加：
the exertion of authority.
权力的行使。