Great wall
Can you see up there? I climbed up all the stairs. Easy to step forward but much harder to go backward down. So steep. The first day in Tsinghua and Insead graduate school. Happy Thanksgiving!
834047保留所有权。
#geological_phenomenon#monochrome#黑白#Thoroughfare#tree#交通工具#植物#photography#transport#地质_现象#plant#摄影#树木#track#black-and-white#greatwall#轨道#railway
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