Kimse kazanın nasıl olduğunu kesin olarak bilmiyordu.
- No one knew for certain how the accident happened.
Tom nereye gitmesi gerektiğini kesin olarak bilmiyordu.
- Tom didn't know for certain where he should go.
For certain.
... And I think there has to be a certain change with some of ...
... Um, of course, the United States, uh, continues to have certain sanctions on Iran, along with ...