Operation difficulties, financing difficult and expensive, and brain drain.

1. Operational difficulties: Affected by the epidemic, small and medium-sized enterprises are experiencing operating difficulties, such as reduced orders, insufficient production capacity, difficulty in capital turnover, and rising operating costs.

2. Financing is difficult and expensive: Due to the tight cash flow of small and medium-sized enterprises during the epidemic, financing needs have increased, but the problems of difficult and expensive financing still exist.

3. Brain drain: Due to the operating difficulties of small and medium-sized enterprises during the epidemic, some brains were lost, making it difficult for the company to sustainably develop.