英语词汇improvision的发音释义、词根词缀、结构分析、同源词、词频及词根记忆法-英语词根词缀词典

词汇	improvision
词根词缀	Online Etymology Dictionary improvision n. "want of forethought," 1640s, from assimilated form of in-(1) "not, opposite of" + provision.
随便看	obsolescence obsolescent obsolesc-, obsolescent-, obsolet- obsolete obstacle obstetric obstetrician obstetrics obstinacy obstinance obstinate obstipation obstreperous obstruct obstruction obstructionism obstructionist obstructive obtain obtainable obtrude obtrusion obtrusive obtund obtuse

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