吃透英语课本,提升在校竞争力
adj. 费力的;繁重的;艰苦的;发奋的
副词:strenuously
The doctor advised Ken to avoid strenuous exercise.
医生建议肯避免剧烈运动。
Strenuous efforts had been made to improve conditions in the jail.
为改善那家监狱里的条件已做了艰苦的努力。
Avoid strenuous exercise in the evening.
应避免在傍晚进行剧烈的运动。
strenuous exercise
剧烈运动
adj.紧张的;费力的;奋发的;艰苦的;热烈的
intense
tough
rough