declassify
verb [ T ] uk/ˌdiːˈklæs.ɪ.faɪ/ us/ˌdiːˈklæs.ə.faɪ/
解密,公开(尤指政治或军事信息)
to say officially that political or military information is no longer secret
Many government documents are declassified after 50 years. 50年后许多政府文件都解密了。
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