網(wǎng)友作文三：

Dear all:
The file system will shtudown [1]due to system maintainance next Friday.
It will take a full day to finish this job.[2]
Please do not acccess the [3]file server that day and backup your files one it[4].
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[1]夠干練了，語法錯誤多。 Be shut down
[2]去掉
[3]Access to
[4]On it ?

網(wǎng)友作文四：

From: office Manager
To: all staff
Subject: upgarde of computer system
As our computer system need to be upgraded, we have arranged the contarctors to upgrade the them [1]on Wedesday. On that day all computers should be shutted down for a full day, so you need arrange some alternative work for that day.

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[1]第一: 不要重復(fù)使用前面已經(jīng)用過的詞；第二：指代錯誤，前面說的system 是單數(shù)，怎么到這里變成了them? 合成一句：as we have arranged the contractor to upgrade our computer system.

網(wǎng)友作文五：

All of the staff:
We have arranged for contractors to upgrade our computer system, so it will be shut down from 0:00,1st, Jan. to 0:00, 2nd, Jan. Please prepare alternative work for the day.
If you have any problem, you can contact with us at any time.

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[1]Anytime 就可以了。 整個memo 寫得很清晰干練，很好！