“孜孜不倦地做某事”常见的英文表达有：persevere in doing sth.、work tirelessly at sth.、be diligent/assiduous in doing sth. 等，以下为你展开介绍：
“persevere”意为“坚持；不屈不挠；孜孜不倦” ，强调在面对困难或挑战时，不放弃、持续努力去做某事。
例句：He persevered in learning English despite many difficulties, and finally achieved great progress.（尽管面临诸多困难，他还是孜孜不倦地学习英语，最终取得了巨大进步。）
“tirelessly”表示“不知疲倦地；孜孜不倦地”，“work tirelessly at sth.”描述某人以不知疲倦的态度持续做某事。
例句：The scientists have been working tirelessly at this research project for years, hoping to make a breakthrough.（多年来，科学家们一直孜孜不倦地致力于这个研究项目，希望能取得突破。）
“diligent”和“assiduous”都有“勤奋的；孜孜不倦的”意思，常用来形容人做事认真、努力、不偷懒。
例句：She is always diligent in her studies, spending countless hours reviewing lessons and doing exercises.（她在学习上总是孜孜不倦，花费无数小时复习功课和做练习。）
例句：The artist was assiduous in perfecting his painting skills, practicing every day.（这位艺术家孜孜不倦地提升自己的绘画技巧，每天都坚持练习。）