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.

The machines in the factory are suspended from operation.

He chose to transition to farming from urban life.

He is good at doing backflips.

The twist in this novel surprises the readers.

He is strengthening his muscles by doing shoulder abduction exercises.

He was doing adduction exercises for his shoulder.