Definition

Examples

• 战士们在前线奋战。
  Zhànshìmen zài qiánxiàn fèn zhàn.
  The soldiers fight bravely on the front line.
• 为了按时完成任务，大家奋战了三天三夜。
  Wèile ànshí wánchéng rènwu, dàjiā fèn zhàn le sān tiān sān yè.
  In order to complete the task on time, everyone worked hard for three days and three nights.
• 他奋战在科研第一线。
  Tā fèn zhàn zài kēyán dì yī xiàn.
  He strives hard on the front line of scientific research.