1. Pay tribute to the most beautiful retrograde, and dedicate it to those who are facing difficulties, those who are facing danger, and those heroes who want to eliminate danger and protect the public.

2. The so-called retrogression means moving towards danger and facing difficulties.

On the one hand, this sentence eulogizes the fearless warriors, on the other hand, it also praises their manners.

4. Difficulties can refer to many aspects. If a person's difficulties can be economic, emotional and physical.

The economic difficulty is that there is not enough money.

6. The emotional difficulty is that the feelings have encountered setbacks and there have been unsatisfactory emotional disputes.

7. If you mean appearance, it means that this person is not wanted and it is difficult to find someone. Of course, it means friendship and many other aspects.