Mammals can maintain a constant body temperature.

The vampire bat is active at night and sucks the blood of mammals.

He feels sick when he sees blood.

Common vampire bats are often active at night.

His blood is always flowing hot.

My blood pressure is always normal.

If you feel that the amount of menstrual bleeding is heavy, it is recommended to consult a doctor.

I go to donate blood every month.

I donate blood every year.

He looked like a beast that is bloodthirsty.