Saldırı tüm bu gereksiz hakaretler tarafından kışkırtıldı.
- The aggression was provoked by all those gratuitous insults.
The student decided to abridge his paper by taking out unnecessary details.
- Der Schüler entschloss sich dazu, seine Hausarbeit zu kürzen, indem er alle unnötigen Details strich.
I want to avoid unnecessary risks.
- Ich will unnötige Risiken vermeiden.