He started training his anal sphincter.

I'm training my gluteus maximus with squats every day.

I was surprised to find a bedbug in the futon.

Alkali metals are highly reactive chemically.

He injured his fascia lata.

A metallic bond refers to the strong bond between metal atoms.

He turned thirty years old.

This picture is fixed to the frame.

This plant needs oxygen to perform photosynthesis.

In this story, Zuan is the protagonist, and his adventure continues.