英语词汇thirty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	thirty
词根词缀	词源： c.1413, metathesis of O.E. þritig, from þri, þreo "three" + -tig "group of ten" (see -ty (1)). Cf. O.Fris. thritich, O.S. thritig, Du. dertig, O.H.G. drizzug, Ger. dreissig. Thirty Years' War (1842) was a religious power struggle waged 1618-48, mainly on Ger. soil. The symbol -30- as printer and telegrapher's code to indicate the last sheet or line of copy or a dispatch is recorded from 1895. In 20c. jargon of journalism, it came to be a traditional sign-off signal and slang word for "the end." 词根记忆： num.三十,三十个(人或物)The crew are thirty in all.全部船员有三十人.
随便看	hale half half-assed half-life half seas over half-wit halibut halite halitosis hall hallelujah hallmark hallow Halloween Hallstatt hallucinate halo halogen halt halter halve halyard ham hamadryad hamburger

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