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Exertion
01
use of physical or mental energy; hard work
例子
He grunted with exertion as he pushed the stuck car out of the snowbank.
The soldier’s face turned black with exertion as he struggled to carry the heavy load.
The athlete's heart rate leveled off after the initial burst of exertion, settling into a sustainable pace.
Human nature is generally of such kind that it will choose a line of least resistance if that is at all possible, and loathe exertion beyond it.
After running the marathon, his face was crimson from the exertion.
