我认识到没有必要给真正的朋友下定义。

I know that there is absolutely no need to give out definitions of a true friend.

youdao

维多利亚时代的人真正有趣的一点是：一切都没有下定义，所以这是某种程度的自由。

What's really interesting about the Victorians is that it was all so undefined, which is a kind of freedom.

youdao

在你的论文中没有清楚的给这种现象下定义。

This phenomenon is ambiguously defined in your paper.

youdao

You realize it's very subtle, because the very first thing in that equation, which is m, has not yet been defined.

你会觉得这很微妙,因为方程里最基本的量 也就是 m,还没有人给它下定义

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