When they used the telescope to create images of the planet, they found an area that appeared dark in light the human eye could see.

VOA: special.2009.08.25

Well, suppose the red light appeared on or as the nose of a reindeer.

但是当它出现在驯鹿的鼻子上时。

耶鲁公开课 - 文学理论导论课程节选

But using infrared light, the spot appeared bright.

VOA: special.2009.08.25