Letter-perfect means right in every small point — not “quite good,” but exact.

Letter-perfect means right in every small point的意思是每個小地方都對——not "quite good,"不是「還不錯」，but exact而是完全精確。

If a student is letter-perfect in a poem, every word and every comma is in the right place. If a report is letter-perfect, the facts and the wording have been checked until there is nothing left to fix.

If a student is letter-perfect in a poem如果一個學生背一首詩背得letter-perfect，every word and every comma is in the right place代表每一個字、每一個逗號都在對的位置上。If a report is letter-perfect如果一份報告是letter-perfect，the facts and the wording have been checked until there is nothing left to fix代表裡面的事實和用字都已經檢查到沒什麼好改的了。

The letter here is a letter of the alphabet, the smallest piece of writing, not a letter you post.

The letter here is a letter of the alphabet這裡的letter是指字母，the smallest piece of writing也就是書寫裡最小的單位，not a letter you post不是你寄出去的信。

The phrase is more American. British English often says word-perfect when someone can recite a text with no mistakes.

The phrase is more American這個說法比較偏美式。British English often says word-perfect英式英文比較常說word-perfect，when someone can recite a text with no mistakes指一個人一字不漏地把一段文字背出來。

Letter-perfect can go a little wider than speech: it can praise any performance or copy that is exact. It is complimentary, a little old-fashioned in some rooms, still common in American school and theatre talk.

Letter-perfect can go a little wider than speechletter-perfect用的範圍可以比背誦更廣一點：it can praise any performance or copy that is exact它可以用來稱讚任何精確無誤的表演或副本。It is complimentary它是稱讚的意思，a little old-fashioned in some rooms在有些場合聽起來有點老派，still common in American school and theatre talk但在美國的學校和劇場用語裡還是很常見。