In November,a cold,unseen stranger came to visit the city.

VOA: special.2009.08.01

As I groped toward the dead kitten, my mother lingered behind me unseen in the dark, her disembodied voice egging me on.

在黑暗中，我向死猫走去，母亲以一种难以言表的威慑，于黑暗中催促着我，“

耶鲁公开课 - 1945年后的美国小说课程节选

These unseen lights which shone through them upon your faith were reflections of American efforts to live up to an idea. Those characters could have been no other than products of American tradition.

作为美国式理想的产物,这些难以绘状的光,其实就象征着,你们为了理想,去拼搏和开拓。

耶鲁公开课 - 1945年后的美国小说课程节选

These works are also about unseen underwater landscapes.

VOA: special.2009.05.06

So we're making the unseen seen in the visualizations.

因此我们通过直观化过程,使看不见的东西变得可见。

麻省理工公开课 - 媒体、教育、市场课程节选

You can see, this is how the unseen rule of finance-- The Wall Street Journal is a venerable newspaper and source of information about finance, but it's not making money.

可以看到,这就是金融界的潜规则,《华尔街日报》是一份令人尊敬的报纸,和金融信息的来源,但它并不盈利

耶鲁公开课 - 金融市场课程节选