About a billion years ago, simple green plants started generating oxygen, which soon became a major part of our atmosphere as well.
大概10亿年前，一些简单的绿色植物开始生成氧气，后来就逐渐变成我们现在大气层的一个主要部分。
The design is based around simple green concepts. Senior botany curator, Frank Almeda, explains.
设计采用了简单的环保概念，资深植物学馆长法兰克·阿尔米达说明。
The design is based around simple green concepts. Senior botany curator, Frank Almeda, explains.
设计采用了简单的环保概念，资深植物学馆长法兰克·阿尔米达说明。
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