0 a chemical substance that is produced naturally in the body or artificially as a drug and is used to treat illnesses and injuries -- steroid
Steroids are sometimes taken illegally by athletes to improve their performance.
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.
Můžeme to dokončit krok za krokem, ať je cesta jakkoli dlouhá, a nelze ji dokončit, ať je cesta jakkoli krátká, pokud si ani neoznačíte svou stopu.