攻关

gōngguān

HSK 7

攻关 — gōngguān

1. to storm a strategic pass; figuratively, to tackle a key or difficult problem

   在项目关键阶段，我们必须集中力量攻关技术难题。 zài xiàngmù guānjiàn jiēduàn wǒmen bìxū jízhōnglìliàng gōngguān jìshùnántí — At the critical stage of the project, we must concentrate our efforts to tackle the technical difficulties.