两年前在美国的一节摄影课上，我给同学们放了一段幻灯片并回答了他们提出的有关我在非洲工作的问题。

I gave a slide show1 to a university photography class in the U. S. two years ago and answered questions about my work in Africa.

youdao

两年前在美国的一节摄影课上，我给同学们放了一段幻灯片并回答了他们提出的有关我在非洲工作的问题。

I gave a slide show1 to a university photography class in the U. S. two years ago and answered questions about my work in Africa.

youdao