unwaveringly

The scientist pursued his theory unwaveringly for twenty years until it was finally proven.

(Chinese) 这位科学家二十年来坚定不移地研究他的理论，直到最终被证实。

She followed the doctor's strict diet plan unwaveringly to improve her health.

(Chinese) 她坚定不移地执行医生的严格饮食计划以改善健康。