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for certain
01
肯定
with complete confidence
例子
The evidence proved for certain that the hypothesis was correct.
He was hired for certain after a successful interview.
I can state for certain that the event will take place on Friday.
She knew for certain that she had left her keys on the table.
In the complex immigration system, it's not uncommon for certain cases to fall through the net, resulting in individuals facing uncertain legal status.
