词典释义：
in a natural or raw state; not yet processed or refined
天然的；未加工的；未提炼的
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crude oil 原油。
【统计】 （数字）概约的
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the crude mortality rate 概约死亡率。
(of an estimate or guess)likely to be only approximately accurate
（估计，猜测）粗略的，约略的。
constructed in a rudimentary or makeshift way
粗制的，简陋的
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a relatively crude nuclear weapon 一件相对粗糙的核武器。
(of an action)showing little finesse or subtlety and as a result unlikely to succeed
（行动）不成熟的
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the measure was condemned by economists as crude and ill-conceived .该措施被经济学家们斥之为不成熟且构思极差。
(of language, behaviour, or a person)offensively coarse or rude, especially in relation to sexual matters
（语言，行为或人）（在有关性的方面）粗俗的，粗鲁的，粗鄙的
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a crude joke 粗鄙的笑话。
natural mineral oil
原油
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the ship was carrying 80,000 tonnes of crude .该船载运着８０，０００吨原油。
"late Middle English： from Latin
