单词	nut
释义	nutnut /nʌt/ ●●● S2 W3 noun [countable] Etymology ETYMOLOGYnut Origin: Old English hnutu 1FOOD a dry brown fruit inside a hard shell, that grows on a tree:  a selection of nuts a cashew nut2TOOL a small piece of metal with a hole through the middle, which is screwed onto a bolt to fasten things together:  Use a wrench to tighten the nuts.3CRAZY PERSON informal someone who is crazy or behaves strangely:  Oh, don’t be such a nut.4a golf/opera etc. nut informal someone who is very interested in golf, etc. SYN fanatic:  Tina is a real health nut.5the nuts and bolts of something informal the practical details of a subject or job:  the nuts and bolts of the banking system6a hard/tough nut (to crack) informal a difficult problem or situation, or a difficult person to deal with:  The judge was known to be a tough nut to crack.[Origin: Old English hnutu] → see also nuts1
随便看	preconceived preconception precondition preconscious precook precooked precursor predate predation predator predator-prey relationship predatory predatory pricing predawn predecease predecessor predestination predestine predestined predetermination predetermined predeterminer predicament predicate predicative

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