单词	brain
释义	noun | verb brainbrain1 /breɪn/ ●●● S2 W2 noun Etymology ETYMOLOGYbrain1 Origin: Old English brægen Collocations COLLOCATIONS► used your brain  If you used your brain (=tried to think in an intelligent way) you could figure it out. 1ORGAN [countable] science, biology the organ inside your head that controls how you think, feel, and move:  The doctors have found a tumor in his brain. The brain has trillions of cells.2INTELLIGENCE [singular] (also brains) [uncountable] the ability to think clearly and learn quickly:  You need brains to do this job. If you used your brain (=tried to think in an intelligent way) you could figure it out. Ted’s got more money than brains (=he doesn’t spend his money wisely).3PERSON [countable] informal someone who is intelligent, with good ideas and useful skills:  Some of the best brains in the country are here tonight. Louis was the brain in our class. → see also brain drain4brain dead a)medicine in a state where your brain has stopped working correctly, even though your heart may still be beating b)informal in a state in which you behave stupidly, especially because you are tired:  I was feeling completely brain dead when I wrote that email.5be the brains behind/of something to be the person who thought of and developed a particular plan, system, or organization, especially a successful one:  Silvetti is the brains behind the business.6have something on the brain informal to be unable to stop thinking about something:  You always have food on the brain.[Origin: Old English brægen] → see also beat your brains out at beat1 (11), birdbrain, feather-brained, harebrained, pick somebody’s brain(s) at pick1 (8), wrack your brain(s) at wrack1 (1) noun | verb brainbrain2 verb [transitive] Verb Table VERB TABLE brain Simple Form Present I, you, we, they brain he, she, it brains Past I, you, he, she, it, we, they brained Present perfect I, you, we, they have brained he, she, it has brained Past perfect I, you, he, she, it, we, they had brained Future I, you, he, she, it, we, they will brain Future perfect I, you, he, she, it, we, they will have brained old-fashioned to hit someone very hard on the head
随便看	heated heatedly heat energy heater heat exhaustion heath heathen heather heat index heating heat island heat lightning heat of fusion heat of vaporization heatproof heat pump heat rash heat-resistant heat-seeking heatstroke heat wave heave heave-ho heaven heavenly

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