Tell me what the "first floor and second floor" in the comments mean?

The first floor, also known as the "sofa", refers to the first reply.

In the forum, there are usually many people participating. The host posts the topic of the forum, and then invites friends to come in and discuss. The host - the host wants to entertain guests, and of course there will be a sofa at home. , benches, etc. to entertain guests, but there are too many guests, and all guests must be treated equally, so we can only respect first come. The first comer (the first to reply) can sit on the sofa, while the second can only sit on the sofa. After sitting on the bench, the third thing is the floor. In order to comfort yourself or not to dislike the host's hospitality, you can treat the floor as a leather floor

1. Floor

Sentence: According to Molloy , because the building was originally used to manufacture network and PC equipment, it already had the thickened floor plates and two-story heights required for a data center.

Explanation: The wooden board or cement board between the upper and lower floors of a building.

2. Loulan

Sentence: This article denies the theory that Sven Hedin hired the guide Eldik to discover the ancient city of Loulan in March 1900, and believes that the ancient city of Loulan was discovered by two other people. Discovered on March 3, 1901.

Explanation: The real name of the ancient Shanshan Kingdom.

3. A Dream of Red Mansions

Sentence: In the Qing Dynasty, some highly artistic novels appeared, the most famous of which is Cao Xueqin's novel describing the rise and fall of a feudal aristocratic family. The novel "A Dream of Red Mansions".

Explanation: Also known as "The Story of the Stone" and "The Fate of Gold and Jade". Excellent novels of the Qing Dynasty in my country. Author Cao Xueqin. The novel reflects the reality and various contradictions of feudal society, exposes and criticizes the dark and decadent evils of the feudal ruling class and the feudal system, and shows the inevitable historical trend of the demise of feudal society.

4. Drum Tower

Sentence: According to the White House press corps, Biden had lunch with U.S. Ambassador to China Gary Locke at a family-run restaurant near the Drum Tower that afternoon.

Explanation: In the old city, there was a building with a big drum, and the drum was beaten on time inside the building to tell the time.

5. Clock Tower

Sentence: According to a report obtained by The Sunday Telegraph, Big Ben has tilted 0.26 degrees northwest, which means that the top of the clock tower has tilted 1 ft 5 in (435 mm) from vertical.

Explanation: (1) In the old city, there was a building with a big clock, and the bell was rung in the building to report the time. (2) A taller building where the clock is installed.

6. Corner Tower

Sentence: This modern corner tower symbolizes Beijing’s recent transformation and modernization. The hotel is largely complete and was originally expected to open in the second half of last year, but was later pushed back to this year.

Explanation: A building on the corner of the city used for observation and defense.

7. Gatehouse

Sentence: Guangliang Gate is located in the southeast corner of the house. It usually occupies the second room of the upside-down room. However, the height and depth of the gatehouse are larger than that of the upside-down room. Therefore it appears more prominent.

Explanation: (~儿) The archway-style roof above the gate.

8. Brothel

Sentence: In 1960, Taylor won an Oscar for her film "Butterfield." In 1967, she won the Best Actress Award again for her successful portrayal of a foul-mouthed alcoholic in the film "The Last Night of Love."

Explanation: Brothel.

9. Tea House

Sentence: Hangzhou is located in the most developed coastal area in southeastern China. It is famous for its prosperous economy, colorful culture and beautiful scenery. It is famous far and wide, especially the West Lake and Lakeside Teahouse.

Explanation: A teahouse with a building (mostly used as the name of a teahouse).

10. Stairs

Sentence: When I reached the bottom of this very special staircase, I found myself in what my regression therapist calls the "hall of wisdom." This The auditorium has many doors and openings.

Explanation: A device erected between the two floors of a building for people to go up and down, shaped like steps.