100多年前的那個著名的舊金山大地震，地震引發火災，當時就是用了這一招，先人為的燒出一片“隔火道”，將半個城市保住了。

來源: Sequoia_CA 於 2025-02-09 12:14:34 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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