send in one's papers

例句：

1. 1.Please send in your application forms before the deadline.
   请在截止日期前提交你的申请表。
2. 2. The company requires all employees to send in their annual performance reports.
   公司要求所有员工提交他们的年度绩效报告。
3. 3.After submitting his papers, he was accepted into the university.
   提交了他的文件后，他被大学录取了。