The theory of black body radiation is an important part of physics.

His unbroken cursive calligraphy is beautiful, and the flowing movement is superb.

This elongated statue is the most popular exhibit in the museum.

The housing of this electronic device is very sturdy.

I strive for body care by doing moderate exercise and eating a balanced diet every day.

I saw a flying object in the sky.

He tried to solve the problem all day long.

Today is my birthday.

Our store has a regular day off every Monday.

Our project is scheduled to be completed on the twentieth day of the month.