In the old days, people used to consider milk as an important source of nutrition.

My father is a doctor.

Tom was proud of his knowledge and wisdom.

The Earth is our home.

When a baby starts weaning, you begin to give them solid food little by little.

The baby has started to wean.

Daichi is my best friend.

He studies hard every day.

Day after day, he continued to strive to solve the problem.

He left Japan last year.