英语词汇brain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	brain
词根词缀	词源： O.E. brægen, from P.Gmc. bragnam, from PIE* base mregh-m(n)o- "skull, brain" (cf.* Gk. brekhmos "front part of the skull"). The custom of using the plural to refer to the substance (literal or figurative), as opposed to the organ, dates from 16c. Fig. sense of "intellectual power" is from 1393; meaning "a clever person" is first recorded 1914. Brainsick (1483) meant "mad, addled." Brain-dead is from 1976; brain teaser is from 1923. Though it had been occasionally used since early 1900s, brain trust became current 1933, in ref. to the intellectuals gathered by U.S. President Franklin D. Roosevelt as advisors. Brain stem first recorded 1879, from Ger. Brain drain is attested from 1963. 词根记忆： n. (大)脑,骨髓;(pl.)脑力,智能Strain brain on the train is restrained.在列车上过度用脑受到约束.
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