insufficiencyn.
英 ɪnsə'fɪʃ(ə)nsɪ | 美 ,ɪnsə'fɪʃənsi
中文n. 不足，不充分；机能不全；不适当
词根词源
insufficiency (n.)1520s, from Late Latin insufficientia, noun of quality from insufficientem (see insufficient). Insufficience "deficiency" is from early 15c.
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