不斷 Simplified: 不断 On the HSK 3 vocabulary list, at CEFR level B1. bùduàn ㄅㄨˋ ㄉㄨㄢˋ unceasing uninterrupted continuous constant Where 不斷 is used Example sentences and grammar articles using 不斷 Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0 国际中文教育中文水平等级标准, 中华人民共和国教育部, MIT