What does it mean that old sows wear bras one after another?

Doing things systematically, methodically, logically, quoting classics and being knowledgeable.

Explain the reason:

It is a folk allegory that old sows wear bras.

Because sows have more breasts, if you bring bras to old sows, you need to wear multiple pairs of bras, which is interpreted as a two-part allegorical saying.

The two-part allegorical saying "Old sows wear bras one after another" is a metaphor for being methodical and logical in speaking and doing things, quoting classics and being knowledgeable. It is also said that people are insincere, and in order to achieve their goals, they have used one routine after another.

Background:

Proper comparison is also the same feature of two-part allegorical sayings. However, "metaphor is always a postscript." The first half of two-part allegorical sayings is sometimes inappropriate or undesirable, and some involve some physical defects, superstitions and old customs. In order to take some of its properties or characteristics, it leads to the meaning of the fable part.

The first half of "Old Sows Wear Bras One after another" plays the role of "introduction", like a riddle, and the second half plays the role of "backing", like a riddle, which is very natural and appropriate. Among them, two-part allegorical saying has its unique expressive force. Give people profound thinking and enlightenment, spread through the ages. It reflects the unique customs, traditions and national culture of the Chinese nation.