After we finished touring Bai Mansion, Sun Dannian and I were discussing where to go next, when a helpful passerby chipped in to give us a suggestion.

从白公馆出来，S和我商量下面去哪儿。这时一位热心的过路人插话进来给我们建议。

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At dusk, I realize I have been the passerby of the world.

黄昏，我才意识到，自己才是世界的过客。

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During the three-day-two-night railway journey, we also encountered two "passerby" that I had marked down in my trip journal.

在这三天两夜的火车之旅中，我们同样遇见了让我的笔记录下了的两位“匆匆过客”。

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