Dreye權威釋義 | strenuous

a.

費勁的，費力的
Is swimming a strenuous exercise?
游泳是很費力的運動嗎？
奮發的；強烈的，激烈的
He made strenuous efforts to improve his reading.
他奮發努力提高閱讀能力。
緊張的；艱苦的；繁重的
It takes many years of strenuous training to be an outstanding athlete.
要成為一名傑出的運動員需要多年艱苦的訓練。