1. The judge was not afraid of the two vicious-looking criminals and gave a fair verdict.2. The suspect walked into the interrogation room with a vicious look on his face.
 vicious-looking with a vicious look on one's facevicious 就是兇惡的意思.
1. 兩個兇神惡煞的歹徒2. 他兇神惡煞地走進屋裡來.
It gives the illusin that you've computed the entire answer immediately.