"We honor the women who traveled those lonely roads to be the first ones in those court rooms, to be the first ones in those board rooms, to be the first ones on those playing fields, and to be the first ones on those battlefields.

VOA: standard.2010.03.08

These are the ones that are coming right out at you, so this is going to be on a second pi orbital.

它们朝向你们，所以这里有另一个π键。

麻省理工公开课 - 化学原理课程节选