攻坚 gōngjiān storm fortifications Origin Definitions Defs Strokes Stroke Words Sentences Sents Showing: tackle difficulties All meanings 2 gōngjiān 2 storm fortifications 1tackle difficulties 1 1 sentence for 攻坚 (gōngjiān — tackle difficulties) 我们必须在核心技术上攻坚。 wǒmen bìxū zài héxīn jìshù shàng gōngjiān. We must tackle the challenges of core technologies. Source: Dong Chinese Dictionary