We climbed the South Tower stairwell back to the bridge and found Mr. Chen again standing sentry and he proffered us a slight if somewhat cool nod.

我们沿着南塔的楼梯井爬回桥上，又发现了正在站岗的老陈，酷酷地朝我们点了点头。

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Then climb, we see a towers, dad said: "this is the tower, the ancient sentry guard here."

接着往上爬，我们看到了一座碉楼，爸爸说：“这是哨塔，古代哨兵就在这里放哨。”

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