strenuous

紧张的；费力的；奋发的；艰苦的；热烈的英释adjadjneeding a lot of effort or strength

1 strenuous exercise,剧烈运动

1 a strenuous climb.艰难的攀登

2 The doctor advised Ken to avoid strenuous exercise..医生建议肯避免剧烈运动。