carbon amber glass

例句：

1. 1. Carbon is a common elementin the periodic table.
   碳是周期表的常见元素。
2. 2. The scientist discovered a newtype of carbon that could be used forenergy storage.
   这位科学家发现了一种可用于能源存储的新类型的碳。
3. 3. The carbon footprint ofthe city is increasing due to its rapiddevelopment.
   由于城市的快速发展，城市的碳足迹正在增加。