首先，你得开始一段对话。

First of all, you have to start a conversation.

youdao

积极主动地开始一段对话。

Be active to start a conversation.

youdao

在他将开始一段新的生活之际，我想说些什么。

I tried to think of something to say as he would start a new period of life.

youdao

Okay. Now ultimately what happens with this is that we begin to take this stream and organize it into different patterns.

好了,这最后的结果,是我们开始把一段无序的节拍流,组合成了不同的模式

耶鲁公开课 - 聆听音乐课程节选

So that was Beethoven's Fifth Symphony, the beginning of it, a famous passage in the history of classical music.

这是贝多芬的第五交响曲,开始的一段,在古典音乐史上非常有名一段

耶鲁公开课 - 聆听音乐课程节选

So what she's going to do is start loading up the electrons, and you see this wand here move slowly, and it takes a while to do it, start become perpendicular.

所以她将要加载电子，你们看到这个棒慢慢地移动，这个需要一段时间，开始变得垂直了。

麻省理工公开课 - 化学原理课程节选