刻苦 (kè kǔ): Assiduous (Adjective) — Meaning & Stroke Order

With his assiduous spirit, he achieved extraordinary success in adversity.

Don't you think that just being hardworking is not enough, and methods are also needed?

Although he is very smart, he lacks a painstaking attitude, so his progress is limited.

She studies foreign languages assiduously in order to pursue further studies abroad in the future.