Second floor: This floor is full of parallelism, with four groups of * * *, which should be read in layers. Some words are instructive, such as "An old friend is not alone ..." and "Let the elderly have a home ...", all of which are used as food. The last group talks about the concepts of "goods" and "strength" and these two words.
The third layer: "Yes, so" is read in the tone of connecting the preceding with the following. "Yes, Datong" is the conclusion of the full text, so read it clearly and have a positive tone.