调查者试图揭露真相的细节，但是由于军事机构森严的等级制度，和严密的控制氛围，这项工作一直进展得不容易。

Investigators are working to uncover the details, which hasn't been easy because of the hierarchical, tightly controlled atmosphere that characterizes this and other military institutions.

youdao

调查者试图揭露真相的细节，但是由于军事机构森严的等级制度，和严密的控制氛围，这项工作一直进展得不容易。

Investigators are working to uncover the details, which hasn't been easy because of the hierarchical, tightly controlled atmosphere that characterizes this and other military institutions.

youdao