I attach a copy of the memo for your information.

我附一份备忘录供你查看。

I made a memo on my memo-pad to buy more coffee.

我在记事簿上记啡。

Bacula memo: It comes by night and sucks the vital essence from your computers.

她随着黑夜而来临，吮吸你计算机上生死攸关的数据。