n.動植物飼養(yǎng)園；玻璃容器
Small compared to Earth, the completed self-contained terrarium was awesome at the human scale. 生物圈二號跟地球相比是小，但是作為一個完全自足的玻璃容器，和人相比，它的規(guī)模就大得令人敬畏了。
