kiln in the shape of steamed bun

例句：

1. 1. The bricks were fired in a kiln to make them stronger.
   这些砖块在窑里烧制以使其更坚固。
2. 2. The pottery was fired in a kiln to produce beautiful pieces.
   陶器在窑中烧制以生产出美丽的作品。
3. 3. The kiln is used to shape the clay into different shapes.
   窑用于将黏土塑形成不同形状。