요구하며

In a sentence

• 학생들이 그 교육 정책에 대해 변화를 요구하며 항의를 시작했습니다.

  The students started protesting, demanding changes to the educational policy.

  In this sentence, '요구하며' is used to indicate the act of demanding or requesting as part of an ongoing action (protesting).

• 기술자는 작업 환경 개선을 요구하며 의견서를 제출했습니다.

  The engineer submitted a statement, demanding an improvement in the working conditions.

  Here, '요구하며' expresses the act of demanding improvement as part of the action of submitting the statement.

• 소비자들은 품질 보증을 요구하며 제조사에 문의했습니다.

  The consumers contacted the manufacturer, demanding a product quality assurance.

  In this example, '요구하며' is employed to describe consumers requesting assurance while carrying out an action (contacting the manufacturer).