1
declassify sth
宾语通常是文件、报告等机密资料。
The government decided to declassify the files.
政府决定解密这些文件。
解密；解除机密
declassifies — third person singular of declassify
先理解核心含义，再看它在真实句子里的用法。
解密；解除机密
to officially remove the secret status from a document or information so that it can be made available again
The government decided to declassify the files.
政府决定解密这些文件。
解除对......的保密限制；撤销对......的限制
to remove the classification from; to lift the restrictions on
declassify
Base
原形
declassifies
3rd person
第三人称单数
declassifying
-ing
现在分词
declassified
Past
过去式
declassified
Past participle
过去分词
The government declassifies documents after fifty years.
政府五十年后解密文件。
They declassified the report last month.
他们上个月公开了这份报告。
The committee has declassified several files.
委员会已解密了几份文件。
declassify 的主语通常是政府或机构，宾语为文件、信息等；常用于被动语态 be declassified。
The government decided to declassify the old military reports.
政府决定解密那些旧的军事报告。
After fifty years, the agency declassified the entire file for public review.
五十年后，该机构解密了整份文件供公众查阅。
They are declassifying the documents so historians can study them.
他们正在解密这些文件，以便历史学家能够研究它们。
宾语通常是文件、报告等机密资料。
The government decided to declassify the files.
政府决定解密这些文件。
被动语态在正式语境中很常见。
The records were declassified after thirty years.
这些记录在三十年后被解密。
Not this
The classified report declassified after twenty years.
Use this
The classified report was declassified after twenty years.
declassify 是及物动词，必须带宾语或使用被动语态；不能说文档主动“解密”，应改为被动语态 was declassified。
Not this
The agency decrypted the top-secret files and let historians see them.
Use this
The agency declassified the top-secret files and let historians see them.
decrypt 指把加密数据解码，而 declassify 指解除保密级别；这里的意图是解除保密，所以应用 declassified。
Not this
The committee declassificated the records after the review.
Use this
The committee declassified the records after the review.
declassify 是规则动词，过去式为 declassified，不要受 classification 影响而造出 declassificated。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
解密文件
After fifty years, the government finally agreed to declassify the documents.
五十年后，政府终于同意将这些文件解密。
解密档案
The historian asked the ministry to declassify the records of the trial.
历史学家要求该部解密审判记录。
解除信息的机密状态
They decided to declassify information about the early space program.
他们决定解除早期太空计划信息的机密状态。
解除情报的机密限制
The president has the authority to declassify intelligence when it serves the public interest.
总统有权在符合公共利益时解除情报的机密限制。
将报告解密
Congress pressed the agency to declassify the report before the hearing.
国会敦促该机构在听证会前将报告解密。
已解密的文件
The archive now contains many files declassified under the new policy.
档案馆里现在有许多根据新政策解密的文件。
Use declassifies naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
拆开记：de（去掉）+ classify（分类/标密）＝解除机密分类。想象文件盖上“DECLASSIFIED”章，向公众公开。
语域：formal 常见场景：government archives、intelligence reports、official announcements 该词通常用于正式场合，指政府或官方解除文件的保密级别，多见于官方声明和新闻报道；日常口语中很少使用。
All six words share the final sound /ɪfaɪ/ and rhyme with declassify. The spelling '-ify' is consistently pronounced /ɪfaɪ/. Watch out for lookalikes such as 'defy' (/dɪˈfaɪ/) and 'deny' (/dɪˈnaɪ/), which end in /aɪ/ but lack the /ɪf/ syllable.
Dictionary facts from ECDICT, WIKTIONARY.