We tested it by writing words unclearly in a few languages.

我们通过用几种语言写不清楚的单词来测试它。

I really feel like it's very subtle here. He says this word quickly, a little unclearly.

我真的觉得这里很微妙。他说这个词的速度很快，有些含糊不清。

And actually, let's go is said pretty unclearly. I would say there's not even a T sound there.

实际上，我们走吧，说得很含糊。我会说那里甚至没有 T 音。

First, a student should become acquainted with the fundamental motives and purposes and beliefs which, clearly or unclearly recognized, underlie all human experience and bind it together.

首先，学生应该熟悉基本的动机、目的和信念，这些动机、目的和信念，无论是否清楚地认识到，是所有人类经验的基础，并将其结合在一起。