我们正在课堂上学习爱伦坡的恐怖小说。

We're studying ___Poe's horror stories in class.

这种新型材料仅有几皮米厚。

This new material is only a few ___picometers thick.

年轻人在节日上朗诵了一首传统诗歌。

The young people performed a traditional ___poem during the festival.