What does a six-day two-bedroom (single person) tour in Beijing mean?

The single flight in the six-day two-bedroom (single) tour in Beijing is:

Two bedrooms (solo flight) are two travel options for tourists.

If you choose to fly solo, then this trip is a round trip, one by plane and one by train.

If you choose a two-bedroom apartment, then the round-trip traffic on this trip is all train sleepers.