"Grandpa, this is called a train, and it's a means of transportation like a car."

"This car is good, this should be able to do a good job of multiple people." An old man standing next to Wang Xiaohei said happily.

"Grandpa, this is called a train, and this trip can carry one or two thousand people." Next to the old man......

"Return to 1999" Chapter 237 is in danger and is in the middle of a hand-hitting, please wait a while,

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