The noun for that act of blacking out: going through an official document before publication and removing or covering the parts that must stay secret. It works two ways.

The noun for that act of blacking out那個「塗黑」動作的名詞: going through an official document before publication在正式文件發表前逐一檢查, and並 removing or covering the parts that must stay secret把必須保密的部分移除或遮蓋起來。It它 works two ways有兩種用法。

As a general idea it is uncountable — 'the redaction of the files took three weeks'. But it is also countable, meaning one particular blacked-out piece: 'there were redactions on almost every page', 'a redaction covering three lines'. That countable use is common in news reports about leaked or released documents.

As a general idea當作一個籠統的概念時 it它 is uncountable是不可數名詞 — 'the redaction of the files took three weeks'「the redaction of the files took three weeks」（這些檔案的塗黑作業花了三週）。But但 it它 is also countable也可以是可數名詞, meaning指的是 one particular blacked-out piece某一處具體被塗黑的地方: 'there were redactions on almost every page'「there were redactions on almost every page」（幾乎每一頁都有塗黑處）, 'a redaction covering three lines'「a redaction covering three lines」（一處蓋住三行的塗黑）。That countable use這種可數用法 is common常見 in news reports about leaked or released documents在關於外洩或公開文件的新聞報導裡。

Like the verb, it belongs to law, government and journalism rather than daily talk. It carries the same older scholarly meaning too: a redaction of a text is a version that someone has edited and put into final shape, and people who study ancient writings talk about the different redactions of a manuscript.

Like the verb跟動詞一樣, it它 belongs to law, government and journalism屬於法律、政府和新聞界的用語, rather than而不是 daily talk日常對話。It它 carries the same older scholarly meaning too也帶有同樣古老的學術意義: a redaction of a text一份文本的redaction is a version that someone has edited and put into final shape是someone某人has edited編輯過並put into final shape定稿的a version版本, and而 people who study ancient writings研究古代文獻的人 talk about the different redactions of a manuscript會談論一份手稿的不同redactions（修訂版本）。