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to cast doubt on sth
01
to create uncertainty or skepticism by questioning the truth or validity of something
Пример
Recent developments have been casting doubt on the reliability of the witness's testimony.
The lack of evidence cast doubt on the accuracy of the report.
The lack of evidence cast doubt on the reason for his sudden disappearance.
The professor encouraged students to cast doubt on traditional theories and think critically.
The new evidence is casting doubt on the accuracy of the report.