16,

On the train.

Inside.

day.

Xu Hong felt very fresh and curious when she took the train for the first time. She sat in the car window, looking at the fields, big trees and distant mountains outside, and kept asking: "Mom, you said the train was driving forward, why did the trees and fields fall backwards?"

Yu Li looked and said, "This is a physical phenomenon. We use the tree as a reference object. The tree is still outside, the train is driving fast, moving forward rapidly, and people move together with the train. Do you understand?"

Xu Hong shook her head, not understanding a little.

Yu Li: "You are still young now, and you will learn this when you grow up and understand it."

Xu Hong: "Mom, then what can we get there?"

Yu Li: "In two hours."

Xu Hong: "Is it far away?"

Yu Li: "It's not too far, it's more than a hundred miles!"

Xu Hong was happy: "Oh! I'm finally going to see my dad. I'm seeing my dad."

Yu Li glanced at her and nodded.

At this moment, something suddenly fell from Xu Hong's mouth and shouted, "Mom, what's wrong with my mouth? Ah!"

Yu Li: "Come on, let mom see."

Xu Hong turned around and looked at her mother.

Yu Li said to her: "You open your mouth."

Xu Hong opened her mouth.

Yu Li saw it and understood: "Ouch! Your teeth are lost."

Xu Hong was shocked and asked, "Mom, where did my teeth fall?"

Yu Li: "You can look for it quickly."

Xu Hong turned around and searched around her, and the small tooth fell on the seat. She picked it up and said to Li: "Mom, I'm looking for it."

Yu Li took it, took a look, and said, "I'll pack it for you, and wait until you see your father, let him take a look." As she said that, she took out a piece of paper and wrapped the tooth.

17,

TRAIN STATION.

outside.

day.

Xu Hong and Yu Li got off the train together and walked out slowly with the customers.

When he arrived at the square outside, Xu Hong asked, "Mom, are we coming soon?"

Yu Li replied: "Well, after leaving the train station, you will be there after walking a little more."

Xu Hong looked up at the wide streets and bustling crowds on the streets, and said to Li: "Mom, is this place so big?"

Yu Li: "Yes! This place is much bigger than ours."

Xu Hong pointed with her hand: "Mom, look at there are so many buildings."

Yu Li: "Well, Honghong, is this good?"

Xu Hong: "Okay!"

Yu Li: "When my mother has time, I will take you to make a good move."
Chapter completed!