Photo by Worker at carbon black plant John Vachon.
工人摄于炭黑厂约翰瓦谢。
This photo showed us how did the root of plant embed the soil deeply.
这张照片显示植物的根是如何深入到土壤里去的。
It might be a photo of your family or a favorite plant.
这或许是一张全家福相片，或是你喜欢的植物。
It might be a photo of your family or a favorite plant.
这或许是一张全家福相片，或是你喜欢的植物。
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