1In a natural or raw state; not yet processed or refined.

原油。

1. 1.1Statistics (of figures) not adjusted or corrected.
   〔统计〕（数字）概约的
   the crude mortality rate

   概约死亡率。

   Example sentencesExamples

   • European countries have high taxation, and because there are lots of them, this distorts the calculation of crude averages.
   • There are significant decreases in crude and risk adjusted mortality in the four years after appointment.
   • Second, we adjusted crude effects for parental age, education, BMI, height, and weight.
   • Using multivariate logistic regression we adjusted the crude odds ratios for these variables, also controlling for any identified confounders and stratifying by effect modifiers.
2. 1.2 (of an estimate or guess) likely to be only approximately accurate.
   （估计，猜测）粗略的，约略的
   a crude estimate of the number of people available for work

   Example sentencesExamples

   • Such an estimate, however crude it may be, is decidedly impressive.
   • But I'm willing to consider crude estimates, if no more precise ones are conveniently available.
   • These comparisons are rather crude since the sample sizes and geographic distribution of lines differ in each study.
   • It is probably time to accept that raw taxonomic counts provide only a first, crude estimate of biodiversity dynamics and occasionally may be downright misleading.
   • Although a crude approximation, this also suggests that roughly 3000 caribou perished during this event.
   • Obviously these comparisons are extremely crude.
   • Estimates of poverty remain crude for the years before the federal government instituted an official poverty line in the 1960s.
   • They allow students to assess their own progress, and parents to make a crude comparison between schools.
   • One fairly crude estimation of social mobility can be arrived at by comparing social class of origin with that of destination.
   • Note that the available experimental data only allow a crude estimation of the parameter.
   • In addition, I calculated the distance between survey posts and bearing trees to obtain a crude estimate of bearing tree density.
   • That must be, at best, a very crude estimate that could be wildly off in either direction.
   • Also, the mathematical models currently used in phylogenetic analysis are crude approximations to reality.
   • However, any financial forecasts may be based on very crude assumptions about the likely volume of sales, the selling price, distribution costs, and the cost of producing the item.
   • They also classify species according to abundance (based on crude estimates of population density and suitable habitat).
   • ‘I made crude estimates of bite force years ago on large alligators and knew that the forces were large,’ he said.
   • These estimations are relatively crude: a linear approximation for the dose - response curves was used, but this is not necessarily a true model and may not always be fulfilled.

   Synonyms

   imprecise, not accurate, not exact, approximate, rough, coarse-grained, general, vague, hazy, woolly

2Constructed in a rudimentary or makeshift way.

一件相对粗糙的核武器。

1. 2.1 (of an action) showing little finesse or subtlety and as a result unlikely to succeed.
   （行动）不成熟的
   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。

   Example sentencesExamples

   • This financial analysis is basic, almost crude.
   • In fact, the accounts are contradictory and smack of a rather crude attempt at a cover-up.
   • With most artists of his stature, this would more than likely involve a clumsy catharsis resulting in a crude ego trip.
   • A more crude approach is bin raiding, where thieves steal rubbish to search for sensitive documents such as bank statements or utility bills.
   • Yet however imperfect, however crude, they afford the historian's best access to even a rough estimate of public opinion of the period.
   • She called the questionnaire a " very crude method " that was not reliable.
   • Not because the idea is so crude and unlikely, but because of the enormous prospect of being rejected by everyone.
   • But the direction is often crude and lacks the subtlety and genuine insights of his later work.
   • There may in fact be differences, but my method is too crude to find them.
   • This has not prevented the companies from engaging in price discrimination altogether, but has forced them to engage in relatively crude versions.
   • Earlier I rejected a crude relativism and suggested that we need to accept that there is a difference between what we take to be true and what is true.
   • This very simple and crude estimation procedure proves to be very useful, although it increases the computation time yet again.
   • Various rather crude attempts are being made to whip up opposition to such options.
   • I know no case where this kind of crude forgery has succeeded.
   • He argues that these surprises often result from our rather crude understanding of the nature and function of genes.
   • While some employers resort to crude tactics, others are more subtle in their tactics aimed at discouraging union activity.
   • This is inadequate and misleading because it depends on a crude kind of rationalism.
   • Emphasising on the need to initiate ‘action’ against immoral forces to set right things, the play attempts to delineate subtle and crude ironies of life.
   • Our method of recording votes and presenting the results may be crude, but it works, and it's accurate.
   • Economic growth and crude nationalism are insufficient supports for long-term continuance of a regime.

   Synonyms

   substandard, below standard, below par, bad, deficient, defective, faulty, imperfect, inferior, mediocre

3Offensively coarse or rude, especially in relation to sexual matters.

粗鄙的笑话。

Natural mineral oil.

该船载运着80，000吨原油。