刻苦
word C2- hardworking
- assiduous
Its characters
Words with it
From the library
经过多年的刻苦努力，匡衡学到了非常丰富的知识。
经过多年的刻苦读书，他考上了著名的耶鲁大学，专门学习铁路工程专业。
Learn 刻苦 in real texts
With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.