The first one will be above and below the bond axis is where we'll see the electron density, and the second will be perpendicular to that, so it will be a density in front of and behind the bond axis.

第一个是在键轴之上和之下,我们可以看到电子密度，另外一个垂直于它，所以在键轴之前和之后有电子密度。

麻省理工公开课 - 化学原理课程节选

You're sitting there behind your glass window and someone comes in and wants to chat, you should be available; that's what banking is.

你坐在你敞亮的办公室里,有人想进来跟你聊聊,那你就得抽空奉陪,做银行的就是这样

耶鲁公开课 - 金融市场课程节选

Can't be detected in terms of its... It doesn't leave traces behind.

检测不到。,是因为它没留下任何的痕迹。

耶鲁公开课 - 死亡课程节选

I should tell you first of all that in this class, the taping is not going to affect you because the camera is going to be behind your head.

我想跟你们强调的是,录像将不会影响你们,因为摄像机在你身后

耶鲁公开课 - 基础物理课程节选