What is it, then? I asked, for his manner suggested that it was some strange creature which he had caged up in my room.

这是怎么回事？我问道，因为他的举止使我感到似乎他把一个怪物关在我的房间里了。

The air that would be healthful to the earth, the water that would enrich it, the heat that would ripen it, tear it when caged up.

有益于地球健康的空气，滋润地球的水，催熟地球的热度，关在笼子里时撕裂它。