倍 On the HSK 4 vocabulary list, at CEFR level B2. bèi ㄅㄟˋ -fold two, three etc times (multiplier) double to increase or multiply Where 倍 is used Example sentences and grammar articles using 倍 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