to put someone to work; to make someone work
監督は作業員を働かした。
The foreman made the laborers work.
店は繁忙期にバイトを多く働かしていた。
The store was putting many part-timers to work during the busy season.
一部の雇用主は、従業員を必要以上に働かすことがある。
Some employers sometimes make their staff work more than necessary.