He drew a dodecagon shape.

He drew an octadecagon shape.

He was drawing an icosagon shape.

Vitamin B12 is an important nutrient for maintaining the health of the nervous system.

He picked up the ray gun and fired it at the alien.

He gripped the control stick and made the airplane ascend.

It is thirty-three kilometers to my house.

My father is forty-one years old.

My father is thirty-nine years old.

The opinions of netizens are diverse, always providing fresh perspectives.