rigorous
/ˈrɪgərəs/
rigidly accurate; allowing no deviation from a standard
中文释义：严格的；严谨的；严密的
The experiment requires rigorous testing to ensure accuracy.
该实验需要严格的测试以确保准确性。
Students must undergo a rigorous training program before graduation.
学生在毕业前必须接受严格的培训课程。