听着，我知道这不是求婚 而且我也不知道你的意思如何…

Look, I know it's not a proposal, and I don't know where you are…

youdao

等等，我明白你的意思了，但在我们讨论欧洲人的定居如何影响生态系统之前，告诉我，海狸生活在怎样的环境中？

Wait, I see where you are heading with this, but before we go into how European settlement affected the ecosystem, tell me this—what kind of environment do beavers live in?

youdao

我的意思是，除非你想要成功，否则无论如何你都不会成功。你必须在内心深处改变。

What I mean by that is unless you are willing to succeed deep inside you cannot succeed whatsoever; you have to CHANGE it deep inside.

youdao

And if you want to join the political game, you must be prepared to get your hands dirty, ? and what Machiavelli means by that, ? how he comes to this problem.

如果你想参与到政治游戏中去，你必须做好弄脏你的手的准备，马基雅维利这么说是什么意思，他是如何谈到这个问题的。

耶鲁公开课 - 政治哲学导论课程节选

So conceptually the key difference here, besides the syntax looking slightly different, it just means that if you want a chunk of code to execute no matter what initially, ; you can use the do while loop; if you want to check a condition first, you can use the while loop.

所以概念上，则关键的区别是，除了语法看起来有点不同，它的意思是如果你想要一段代码,最初无论如何都要执行，你就可以用do，while循环;,如果你想要先检查条件，你可以用while循环。

哈佛公开课 - 计算机科学课程节选