用upright posture造句子，“upright posture”造句

Only humans have a natural upright posture.

Why do humans walk on two legs? Our ancestors evolved an upright posture well before our large brains or stone tools even appeared.

Simultaneously, our upright posture put the trachea and esophagus in a near-vertical orientation.

In the face of feelings, there has been a melancholy melancholy, but after all, still do it freely, know how to choose. Therefore, she stroll in the clouds with a quiet and upright posture, let people look up to their whole life, and miss their whole life.

Try to maintain an upright posture while sitting or walking.