Glass
The smooth, clear, shiny glass that you drink milk out of was once sand on the beach. Lots of sand is collected and taken to the glass factory.
玻璃
光滑干净明亮的玻璃,可以用来喝牛奶,是沙滩上的沙子制成的。许许多多的沙子收集起来,然后送到玻璃工厂。
In the factory, the sand is cooked in an enormous vat until it melts. Then baking soda and chalk are added.
在工厂里,将沙子放进巨大的熔炉进行高温融化。随后加入碳酸氢钠和滑石粉。