But in the mid-1990s, there was a schedule for declassifying secret documents.

但在20世纪90年代中期，对撤销秘密文件的机密级有个时间表。

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But in the mid-1990s, there was a schedule for declassifying secret documents.

但在20世纪90年代中期，对撤销秘密文件的机密级有个时间表。

youdao