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to avouch
01
断言
to strongly and publicly state something as true
例子
The explorer avouched the existence of an unknown species during the expedition.
The professor avouched the importance of critical thinking skills in academic success during the lecture.
In his speech, the leader avouched the organization's unwavering commitment to its mission.
The witness avouched the authenticity of the document presented in court.
The historian avouched the accuracy of the newly discovered historical manuscripts.
