突然我感觉自己像一个北美印第安人为古老的烽火信号辩护而拒绝使用先进的电话。

Suddenly I felt like a Red Indian defending the use of good old smoke signals against the advance of the telephone.

youdao

而在汉代，传递敌情之最有效、快捷的方法是将敌情以烽火信号的形式传递。

In Han dynasty, the most effective method was transmitting information about enemies by fire signal.

youdao

我看到有许多烽火台，妈妈说，那是古代用来传递信号的。

I saw many beacon towers. My mother told me that those towers were used to send signals in the ancient times.

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