Facing a desperate situation, he chose to commit suicide.

He made a self-oath to achieve his goals.

He took an oath to himself to succeed.

This hermit crab can perform autotomy when it senses danger, allowing it to escape from enemies.

This self-propelled lawnmower is very convenient.

She takes good care of her natural nails and never neglects them.

He likes to take a walk in the park at dusk.

Chlorine detonating gas is very dangerous, and it requires careful handling.

He is poorly versed in koto, chess, calligraphy, and painting.

He was fascinated by the beautiful tone of the Silla-kin.