突破性 tūpòxìng groundbreaking Definitions Defs Origin Strokes Stroke Words Sentences Sents 突破 tūpò noun breakthrough a significant development or achievement, especially in research or negotiations性 xìng affix [-ity] Suffix used after verbs or adjectives to form nouns expressing a state, quality, or scope, similar to English "-ity", "-ness", or "-ism".
