英语词汇Main Line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	Main Line
词根词缀	词源： "principal line of a railway," 1841; meaning "affluent area of residence" is 1930s, originally that of Philadelphia, from the "main line" of the Pennsylvania Railroad which added local stops to a string of backwater towns west of the city late 19c. that helped turn them into fashionable suburbs.
随便看	promo promontory promote promotion prompt promptness promulgate pron. prone prong pronoun pronounce pronounced pronto pronunciation proof prop prop. propaganda propagate propagation propane propel propeller propensity

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