China Naming Network - Weather knowledge - Eat, eat, eat, eat. Why is it called a small train?

Eat, eat, eat, eat. Why is it called a small train?

Why do you call a small train for a walk as follows:

1. Shopping according to relevant information is very similar to the sound of a train. For convenience, everyone named it a small train, which also means shopping.

According to relevant information, there happened to be a small train inside. You can take a small train to play when you are tired of shopping.

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