This is the 14620th most frequent Korean word.
미성년자를
"미성년자를" means "a minor" or "underage person" in English.
In this sentence, '미성년자를' functions as the object of the verb '보호하다' ('to protect'). It specifies who is being protected.
미성년자를 보호하는 법이 필요합니다.
A law to protect minors is needed.
Here, '미성년자를' is the object of the verb '채용하다' ('to hire'). It indicates who cannot be hired.
미성년자를 채용하는 것은 법적으로 금지됩니다.
Hiring minors is legally prohibited.
In this example, '미성년자를' acts as the object of the expression '대상으로 삼다' (to target as subject). It refers to whom the programs are designed for.