层 (céng): 쌓다; 층; 지층; 건물의 층; 층; (수학) 층; 층을 세는 단위; 층; 지층; 건물의 층; 층; 층, 건물 층, 또는 수준을 세는 단위

There is a layer of dust on the table.

The cake has three layers.

He lives on the second floor.

There is a layer of dirt on the book.

The trees on the mountain are layer upon layer.

There is a layer of dust on the tabletop.

She lives on the third floor.

The cake has many layers.

This sentence has another layer of meaning.