労ろうする

suru verb (special), intransitive verb

work; labor; toil

Intransitive: to exert effort, often in a sustained or arduous way. Somewhat formal or literary.

• 彼かれは国くにのために労ろうすることを誇ほこりに思おもっている。

  He takes pride in laboring for his country.

suru verb (special), transitive verb

put to work; make work

Transitive: to cause someone to work, often implying hardship or exploitation. Less common than the intransitive sense.

• 昔むかしの工こう場じょう主しゅは労ろう働どう者しゃを過か酷こくに労ろうした。

  Factory owners in the past made workers labor harshly.