Xia was the first dynasty of China.

A day has 24 hours.

During the era of the Cold War, the world was divided into two major powers.

During the era of the Cold War, the world was divided into two major powers.

In the intense heat, he continued to practice while drenched in sweat.

We went to the pool to beat the heat.

In the midday heat of summer, he continued to work while drenched in sweat.

When the sun rises, a new day begins.

I am busy with work during the daytime.

The eighth day of every month is my birthday.