麻烦帮我把这段话英文翻译成英文,谢谢!

12/13年级学生可凭卡签出,签出时段:11:20——11:35
12:55——13:35
其他时段,所有学生一律凭签出条签出。

即日起生效。
“请勿代他人签出”如何翻?

第1个回答  2009-02-26
12/13 grade student check out by card and the check time is 11.20-11.35 12.55 - 13.35
Others time all the student should have check out paper .

Effect as from today.
第2个回答  2009-02-26
The students of 12 and 13 grade can check out with the card, check out time :11:20 - 11: 35
12:55 - 13: 35
Other sessions, all students check out by check out article.

With immediate effect.本回答被提问者采纳
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