I traveled through time and space and encountered a famine, and I became a hermit.

Mr. Gu asked excitedly, "Fuer, is this light controlled by electricity?"

Gu Fu smiled and said, "That's understandable. The light is on because there is electricity. This is the switch on the wall. When you don't want to use it, you can click here and it will be turned off. Grandpa, come and try it."

Grandpa Gu walked to the switch, a little excited, and then heard his granddaughter say: "Grandpa, look here, this is the main switch of the house. When you turn it on, all the lights in the house will light up. If you want to turn off the lights, just click it again, and they will all be turned off."

Mr. Gu tried it and found that it was just as his granddaughter said.

"Grandpa, you can try other switches to see which light they are connected to."

Grandpa Gu listened to his granddaughter and tried them one by one. Everyone was amazed, and after Grandpa Gu tried them, everyone was eager to try them.

Taking the characteristics of the light bulb into consideration, Gu Fu had to remind: "Be careful when using it. Frequent switching will make it more likely to be damaged." As he spoke, he awkwardly pointed his two index fingers at each other.

Alas! There is no way, because no one here knows anything about electricity, and the one who knows a little is too young.

Seeing her little appearance, everyone was reluctant to embarrass her. Gu Dahe picked up his daughter and said protectively, "Don't worry, my daughter. Only grandpa is allowed to touch us here. No one else is allowed to touch us."

Everyone also quickly responded that they would only study and would not touch it.

Seeing his family like this, the fake child Gu Fu became even more shy. He blushed and hugged his father's neck, whispering, "It's okay if you don't press it too often or too fast."

After a few more laughs, they began to look around the house. They saw a spacious hall with clean walls and a large lamp made up of many small lights hanging overhead. There was also a large spiral staircase in the corner and an iron door like the one in the main building in the front yard. Fuer said that was called an elevator.

There were some strange chairs and tables in the middle of the hall, and a large black object on the wall opposite the chairs.

On the other side of the door is a space separated by solid wood, and you can vaguely see an elegant tea room inside. There is a large glass window next to the tea table, which can be adjusted in size and fully opened.

It's just right to sit there and drink tea while enjoying the scenery.

Gu Fu said to everyone, "Grandpa, look, these chairs in the living room are called sofas." He pointed to the table and said, "That's called a coffee table. The black one is a TV. I'll teach you how to use it later."

Then he pointed to the tea room and said, "Grandpa, you can use that room to drink tea, read books, and enjoy the scenery."

Mr. Gu nodded with satisfaction. "Okay, Grandpa got it."

Gu Fu pointed to the other side of the stairs, and everyone saw that there was also a room there. Gu Fu said, "Grandpa, there is also a kitchen in there, but it probably won't be used for the time being. I'll teach you when I need it."

Mr. Gu nodded and said kindly, "Just listen to Fu'er."

Gu Fu then said to the crowd, "These are the same as our tables, chairs and benches, but they are more comfortable. After you move in, look at them and use them more, and you'll get used to them."

"It's mainly water and electricity. Now everyone knows how to turn on and off the electricity. These buttons on the wall are the switches."

After thinking for a while, Gu Fu said, "There is another part of the switch. It is the switch of the central air conditioner installed in the house. When it is cold in winter, we can turn on the switch of this small sun, and the temperature in the house will rise. When it is too hot in summer, we can turn on this snowflake-shaped switch, and the house will become cool."

"These two up and down buttons can adjust the temperature." He pointed to the buttons next to it and said to everyone.

After Gu Fu finished speaking, everyone gathered around and identified them one by one. After making sure that everyone knew, Gu Fu brought Mr. Gu and others to the elevator, pointed at the up and down buttons of the elevator and said, "Look, this button is very similar to the up and down buttons just now. This button also means up and down."

"Grandpa, if you want to go up after going downstairs, just press this up button and the elevator will open to pick you up. Grandpa, try it."

Mr. Gu obediently pressed the up button again. The elevator was already stopped on the first floor and the door opened all of a sudden.

Gu Fu said, "Grandpa, you can take a few people to the second floor first. Do you see the button inside? Our building has three floors, plus an attic. If you count from the bottom up, the second floor is the second floor."