rigorous
adj. （测试、系统或程序）严密的，缜密的；（规则，制度等）严格的，苛刻的；一丝不苟的；严酷的，恶劣的
比较级 more rigorous
最高级 most rigorous
例句
The work failed to meet their rigorous standards.
工作没有达到他们的严格标准。
《牛津词典》
Was it a curriculum that appeared more rigorous, perhaps?
或许，这是一门看起来更严格的课程？
All vitamin supplements would be evaluated in scientifically rigorous clinical trials.
所有维生素补充剂都会经过科学严格的临床试验评估。
