The fact that I have this star here, this star here, this star here, is really just 'cause I'm a little anal and it looks pretty to make a little box out of everything but it's not strictly necessary.

事实上大家可以看到，这有颗星，这有颗星，这有颗星，其实是我手痒,这看起来像是用*围成个框，把它们包围起来,其实这是完全没有必要的。

哈佛公开课 - 计算机科学课程节选

Now take that circle that you have just created-- Can you see? That's a circle.

把这个围起来的圆圈-,看到吗？，这是个圆圈。

哈佛公开课 - 幸福课课程节选