Four were ejected at the initial vetting stage but two got "further down the system", he told the BBC.
他在接受BBC采访时说，四人在初始调查阶段被筛掉，但另外两人“深入了这个系统”。
2
The kernel then mounts this initrd as part of the two-stage boot process to load the modules to make the real file systems available and get at the real root file system.