1 simple and basic, without much detail, skill, etc 简陋的；粗略的；粗制的: The method was crude but very effective. 方法虽然粗糙，但很有效。She explained how the system worked in crude terms. 她粗略地解释了一下那种系统的运作过程。

2 referring to sex or the body in a way that would offend many people 粗鲁的；粗鄙的: He's always telling crude jokes. 他老是说一些粗俗的笑话。

3 in its natural state, before it has been treated with chemicals 天然的；未提炼的: crude oil 原油 ➔crudely adv a crudely drawn face 天生的歪脸