The question is asking why it’s hard to get a reservation in Shenzhen, Guangdong Province.

There could be several reasons contributing to the difficulty of getting an uncertain (不可预定) reservation in Shenzhen. Here are a few possible explanations:

  1. Limited supply: Shenzhen has experienced rapid growth and urbanization over the years. The demand for lodging accommodations, dining establishments, or event spaces may have exceeded the available capacity, leading to tight availability.
  2. High demand from Chinese locals and visitors: As one of China’s most economically developed cities, Shenzhen attracts many domestic tourists, business travelers, and local residents seeking entertainment options. This concentrated demand can create a shortage of reservations for popular venues or establishments.
  3. Limited planning horizons by some organizers: Some event planners or venue operators might not anticipate as much interest in their services as they actually receive. As a result, they may not prepare adequately to handle the surge in bookings, leaving limited availability and making it difficult to get a reservation on short notice.

Keep in mind that these are just hypothetical explanations and actual reasons behind uncertain reservations in Shenzhen could be more complex or context-specific.