He just laid it straight ahead!

Therefore, those mountains that are not too high are basically paved directly.

For this reason, Zhou Chongan also built two locomotives, when going up the mountain, the thrust of the double locomotives is stronger, and they can pull their own back and forth, saving the time of turning around.

With the strength of two trains, it is not a problem to climb over the surrounding hills.

And, in addition to tens of thousands......

"The Best Loser" Chapter 679 The Knife Test is in the middle of the hand, please wait a moment,

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