late 14c., "in a raw state," from Latin crudus "rough; not cooked, raw, bloody," from PIE *krue-do-, from PIE *kreue- (1) "raw flesh" (see raw). Meaning "lacking grace" is first attested 1640s. Related: Crudely; crudeness. Crude oil is from 1865.
例文
1. Oil majors need not fear being unable to sell their crude .
大手石油会社は原油が売れないことを心配する必要はありません。
2.A crude oil slick quickly spreads out over water.
原油流出後の浮油はすぐに水面に広がった。
3.Don 't be crude tonight,Bernard,it doesn 't become you.
今夜は生臭物はおろか、バーナード、生臭物はよくない。
4.He was critical of the people,disparaging of their crude manners.
彼はその人たちに対してとても考えがあって、彼らの下品な振る舞いを軽蔑している。/
5.This is the virus in very crude simple diagrammatic form.