FYI stands for for your information. You put it on short business notes and emails when you are telling someone something they need to know — a time change, a file, a fact — and they usually do not have to do a job with it, and they usually do not have to reply. It can sit in the subject line alone, or at the start of a sentence: FYI, the meeting moved.

FYIFYI stands for是縮寫 for your information「供你參考」。You put it on short business notes and emails你會把它放在簡短的商務便條和email裡 when you are telling someone something they need to know當你要告訴對方一件他們需要知道的事 — a time change時間變動, a file一份檔案, a fact或一個事實 — and they usually do not have to do a job with it而且他們通常不需要為此做什麼, and they usually do not have to reply通常也不需要回覆。It can sit in the subject line alone它可以單獨放在信件主旨裡, or at the start of a sentence或放在句子開頭: FYI, the meeting moved像「FYI, the meeting moved」。

It is work language, quick and a little dry. Though actually, with a friend it can feel sharp, as if you are throwing paper on their desk with no hello. At work that dryness is normal.

It is work language這是職場用語, quick and a little dry簡短又有點乾脆。Though actually不過其實, with a friend it can feel sharp用在朋友身上會顯得有點生硬, as if you are throwing paper on their desk with no hello好像連招呼都不打，就把文件丟到對方桌上一樣。At work that dryness is normal在職場上那種乾脆是正常的。

It is not a request, and it is not an apology; it is a flag that says please know this.

It is not a request它不是一個請求, and it is not an apology也不是道歉; it is a flag that says please know this它只是一個標記，意思是「請知悉這件事」。