玻璃球

例句：

1. 1. The window is made of glass.
   窗户是用玻璃做的。
2. 2. He broke a piece of glass in his hand.
   他的手上碎了一块玻璃。
3. 3. Glass is a material that can be shaped into various shapes.
   玻璃是一种可以制成各种形状的材料。