謝謝鼓勵。這些其實是世界共同麵臨的挑戰。但美國是科技前沿國家，怎麽應對更加關鍵和引人注目

來源: ScottGu 於 2023-03-23 21:54:34 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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