我对他的样子有了个大致的概念。

I've got a rough idea of what he looks like.

《柯林斯英汉双解大词典》

希望这些资料能够给大家一个大致的概念，让大家知道索马里的糟糕情形。

So hopefully thatgives you a general idea of just how screwed up Somalia is.

youdao

她通常会对故事情节的展开路线有个大致的概念，“但往往却是错的，”她说。

She starts with a rough notion of how the story will develop, 'which usually turns out to be wrong, ' she says.

youdao

You have an intuitive definition of force.

你只是对力有个大致的概念

耶鲁公开课 - 基础物理课程节选

This is the conception of it.

这是个大致的概念

耶鲁公开课 - 聆听音乐课程节选