0 An undescended testicle (= the round male sex organs that produce sperm) has not yet gone down from inside the body into the scrotum (= the bag of skin below and behind the penis):
When my son was nine he had two operations to bring down his undescended testicles.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.