过硬 guòyìng HSK7 mastery Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: mastery All meanings 2 guòyìng 2 mastery 1quality 1 1 sentence for 过硬 (guòyìng — mastery) 他的飞行技术非常过硬。 tā de fēixíng jìshù fēicháng guòyìng. His flying skills are top-notch. Source: Dong Chinese Dictionary