The first concept was the use of the bind()/unbind() methods.

第一个概念是使用 bind()/unbind() 方法。

youdao

The first concept to be described is the one of Server Groups.

第一个要描述的概念是一个 Server Groups。

youdao

The first concept that you need to understand is the equivalence class.

首先您需要了解的概念是等价类。

youdao

"When Darwin first proposed his theory in eighteen fifty-nine, he had no concept of a gene, no concept of a chromosome, no concept of mutation, and certainly no concept of things like DNA and RNA."

VOA: special.2009.12.01

Then what I'd like you to do for your first concept sheet is to write about that.

然后我需要,你们据此完成第一份观点报告

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

I'm going to show you some slides on how to get at the course readings, and then we'll talk also about doing the first concept sheet.

现在给大家演示一下如何获取阅读资料,接下来我会讲讲如何做第一份观点报告

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Ever since the first concept designs appeared on the web, the Nintendo DS was met with skepticism.

ENGADGET: A Brief History of Handheld Video Games

But the project's first concept is most decidedly a four-wheeler: a plug-in electric Mini powered by a lithium-ion battery.

FORBES: Magazine Article

It also hearkens back to the first concept designs for OLPC which had built-in hand cranks on their sides.

FORBES: A Look At OLPC's XO 3.0 Tablet's Solar And Kinetic Chargers