英语词汇free-fall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	free-fall
词根词缀	Online Etymology Dictionary free-fall n. also freefall, 1919, originally of parachutists and in rocketry, from free, adj. + fall, v.. Related: Free-falling (1962).
随便看	inaugural inaugurate inauguration inauspicious inauthentic inbetween inborn inbound inbox inbred inbreeding Inc. Inca incalculable incandesce incandescence incandescent incantation incapable incapacitate incapacitation incapacity incarcerate incarceration incarnadine

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