攻关 (gōng guān): To tackle tough problems / to tackle key problems (Verb) — Meaning & Stroke Order

We are tackling this difficult problem.

Without sufficient resource support, it is difficult to successfully tackle key problems by relying solely on enthusiasm.

In order to complete the product iteration on time, the R&D department is concentrating its efforts to tackle the key problems of core technology.

To conquer this research project, the experts worked day and night, making tremendous efforts.

He not only independently tackled the tough problem of the code vulnerability but also optimized the performance of the entire system.