你可以加入一个变量，因为它不是封装在花括号里，就像我们刚才讨论的，本质的意思是它可以在文件的所有地方，都可以被访问到。

You can put a variable there, and because it's not encapsulated in curly braces, as we just discussed, that essentially means it's accessible everywhere in that file.

youdao

是啊，就像我们刚才担心你一样。

Yes, just like we were about you.

youdao

需要注意的是，你可以在刚才创建的白色描边上绘制直线，因为稍后我们也会在直线选区上填充白色。

Note that you can go over the white stroke we created because we are going to fill this selection with white as well later on.

youdao

So tell us about what you were doing there at the end.

告诉我们你刚才演奏的是什么

耶鲁公开课 - 聆听音乐课程节选