And I am going to superscript it molecular orbital, and this upper one, to indicate that it's antibonding, has the asterisk.

我将给分子轨道加上标，这个上标，表示反键轨道，有一个星号。

麻省理工公开课 - 固态化学导论课程节选

Star it. Write it down.

标上星号，写下来。

哈佛公开课 - 幸福课课程节选