即将离开知乎
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https://www.bfi.org/design-science/primer/candid-conversation-visionary-architectinventor-philosopher-r-buckminster
您即将离开知乎,请注意您的帐号和财产安全。
https://www.bfi.org/design-science/primer/candid-conversation-visionary-architectinventor-philosopher-r-buckminster