We have three meals a day.
In the morning, we have breakfast. It is at about 6 or 7 o'clock. Breakfast should be good.
We can have milk, egg, and other things. Some students often have no breakfast. It is very bad for their heath.
In china, lunch is the main meal of the day. It is at about 12 o'clock. It is a big meal. There are often three or four dishes. We should be full after lunch.
We usually have supper at about 6 or 7 o'clock in the evening. We should have a small supper.
But in England, people call the main meal dinner. It often means supper.