drop-dead date

• 最后期限

drop-dead date的用法和样例：

例句

1. Tomorrow is the last date for submission of entries for the competition.
   明天是提交参赛表格的最后期限。
2. For a possible major overhaul, the tutor expects a preliminary draft of each paper two weeks before the final due date.
   因为可能要做大规模的检查，导师要求在最后期限前两星期交一份论文初步草稿。