Your paper must be handed in as soon as the bell rings.

铃一响，你的试卷就必须交上来。

youdao

John, your paper must be revised over the weekend, and handed in in its final form on Monday.

约翰，你的论文必须在周末修改，并在星期一交终稿。

youdao

Your paper must be typed in Palatino font on gray paper, and must not exceed 600 pages.

你的论文必须输入帕拉提诺灰色纸张的字体，并且不得超过600页。

youdao

The key rule is that your scanned or electronic receipts must be as accurate as your paper records and you must be able to index, store, preserve, retrieve, and reproduce the records.

FORBES: Recordkeeping and Tax Time