layers of tagmemes and taxemes

例句：

1. 1. The layers of the cake are rich and creamy.
   蛋糕的层次丰富而奶油。
2. 2. The layers of the city's architecture are fascinating.
   城市建筑的层次令人着迷。
3. 3. The layers of the onion peel reveal its inner structure.
   洋葱皮的层次揭示了其内部结构。