难以捉摸

We felt an intangible presence in the conference room.

我们感到会议室里有一种难以捉摸东西。

In Iraq's case this was the Baath, or Renaissance, Party, a vehicle which he ultimately transformed, through terrifyingly capricious ruthlessness, into a fascistic tool for his own absolute control.

无情令人发，冷酷叫人难以捉摸，复兴党因此成了绝对操控法西具。