child labor
Refers to the employment of children in work, often in contexts of exploitation or legal prohibition.
Child labor is prohibited by law in many countries.
He is investigating the reality of child labor.
児童労働 is a more formal and legally precise term for child labor, often used in international conventions and official documents, while 少年労働 is a general term.
Compound of 少年 (shōnen, 'boy, juvenile') and 労働 (rōdō, 'labor').