strenuous

/ˈstrɛnjuəs/

characterized by or performed with much energy or force

Chinese meaning: 费力的；艰苦的；剧烈的

Strenuous exercise can improve cardiovascular health if done regularly.

定期进行剧烈运动可以改善心血管健康。

The hikers faced a strenuous climb up the mountain.

徒步者面临一次艰苦的登山攀爬。