为了赶上项目截止日期，研发团队连续几晚挑灯夜战，终于按时完成了测试。
To meet the project deadline, the research and development team worked late into the night for several consecutive evenings and finally completed the testing on schedule.
To meet the project deadline, the research and development team worked late into the night for several consecutive evenings and finally completed the testing on schedule.