But because the way sound waves operate, we have these low sound waves taking a very long time to clear.

但鉴于声波的传播方式,低声波要过更长的时间才消失

耶鲁公开课 - 聆听音乐课程节选

Pretty clearly, to think about death and continued existence and survival, we have to get clear about the nature of personal identity.

很清楚，要想思考死亡,和继续存在并且活着，我们不得不弄清楚个人身份的本质。

耶鲁公开课 - 死亡课程节选

We want to have that definition clear because in fact we're going to, we might want tabulate heats of reaction, right, and of course want to know what the conditions are for the tabulated values apply. And we're going to want to calculate them from other quantities and again, we're going to need to know each case what are the relevant conditions?

我们想要明确这个定义,因为实际上我们会想把,反应热制成表格，当然我们会,想知道表中的数据在什么样的,条件下是有效的，我们会,想要从其他的量中算出它们,再一次，我们需要知道,每种情形下相关的条件是什么？

麻省理工公开课 - 热力学与动力学课程节选

You think, the first thing we have to get clear on is well what am I?

我们要明白人究竟是什么

耶鲁公开课 - 死亡课程节选

First we have to get clear on what am I what are my parts.

第一我们必须清楚我是谁,我的身体是什么。

耶鲁公开课 - 死亡课程节选

There're two basic things we have to get clear on.

这里有两个问题要弄清楚。

耶鲁公开课 - 死亡课程节选