The main ingredient refers to the main content of a dish. For example, the main ingredient of steamed prawns is prawns;

Accessories refer to the side dishes of a dish. For example, the accessories of steamed prawns are onions, ginger, garlic and green vegetables.

Seasoning refers to oil, salt, sauce, vinegar and other raw materials

It refers to all the main ingredients and vegetables needed for a dish;

Ingredients refer to things such as onion, ginger, garlic, oil, salt, sauce and vinegar.