The meaning of idioms and the two-part allegorical saying that a dead horse is a living horse doctor

1, idiom meaning: Metaphorically, knowing that things are hopeless, there is still hope in case, and actively save them. It also means to make a final attempt.

2. Two-part allegorical saying: A dead horse is a living horse doctor-can it be cured if it can't be cured? A dead horse is a living horse doctor-just try it.

3. Xiehouyu: Xiehouyu is to divide a sentence into two parts to express a certain meaning. The former part is metaphor or metaphor, and the latter part is the explanation of meaning. Part of it is "one sentence", which can also be regarded as a Chinese word game. The original two-part allegorical saying is different from what we see now, and it is an omission of idioms and sentences commonly used at that time.