这里是一个极好的定义，遗憾的是，不是标准的定义。

Here is an excellent definition that, regrettably, is not attributed. However, I have provided a reference to the Website from which it is drawn.

youdao

没有标准的定义，单纯的大小不再是唯一的评判标准，而只是一个因素。

There's no standard definition, and size alone is no longer the only criterion-manageability is also a factor.

youdao

脸谱网的政策胜过其他同类公司，它正帮助其明确对网络时代隐私标准的定义。

Facebook's policies, more than those of any other company, are helping to define standards for privacy in the Internet age.

youdao

Let's just put together some criteria for what-- if you had to say what defines a food, what makes something a food, what would you say?

我们来总结一些,用来定义食物的判断标准,什么决定了某种东西是否是食品,你们认为是什么

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

If we defined food differently: that it's something that nurtures the body, something found in nature, something that doesn't harm the environment-- there are a number of criteria one can apply to define a food-- then we might come up with a different definition than this, but this is the way the nutrition field generally looks at it.

如果我们给出不同的定义,滋养身体的物质,在自然界找到的物质,不会威胁到身体的物质,有很多标准可以拿出来定义食物,我们也许可以就此重新进行定义,但这就是营养学看待食物的方式

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选