突破 tūpò HSK5 surmount Origin Definitions Defs Strokes Stroke Words Sentences Sents 突破口 tūpòkǒu breach an opening or gap made in a physical defense line or barrier突破性 tūpòxìng groundbreaking 突破点 tūpòdiǎn breakthrough a key development or discovery that overcomes an obstacle or allows for significant progress突破瓶颈 tūpòpíngjǐng overcome bottleneck to make a breakthrough