Cover body component and microwave oven

A microwave oven, comprising:

• an oven cavity used for cooking food;
• and
• a cover body component comprising:
• a cover body, wherein the cover body defines a hollow cavity with one opening end;
• and
• at least one water storage portion used for storing water, arranged at a top of the cover body and located in the hollow cavity;
• wherein the at least one water storage portion further comprises:
• a water storage groove arranged on the cover body, and the water storage groove is recessed toward on side of the hollow cavity;
• a vent hole arranged on a side wall of the water storage groove, and the vent hole is close to an opening of the water storage groove and is connected to the hollow cavity;
• and
• a first seal cover configured to cover the opening of the water storage groove, wherein an internal thread structure is arranged on the side wall of the opening of the water storage groove, and an external thread structure cooperatively installed with the internal thread structure is arranged circumferentially on the first seal cover;
• and
• wherein the cover body component is placed over the food within the oven cavity where the food is cooked.