不定积分 Save Sign in to save words Traditional (Taiwan): 不定積分 bùdìngjīfēn ㄅㄨˋ ㄉㄧㄥˋ ㄐㄧ ㄈㄣ indefinite integral (math.) Character by character 不(bù)no 定(dìng)fix 积(jī)amass 分(fēn)divide A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0