Learner's definition of OATH
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1
: a formal and serious promise to tell the truth or to do something誓言;誓词;誓约 -
They were required to take/swear an oath of loyalty. [=promise formally to remain loyal]他们被要求宣誓效忠。
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an oath to defend the nation保卫国家的誓言
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an oath of office [=an official promise by a person who has been elected to a public office to fulfill the duties of the office according to the law]就职宣言
2
old-fashioned : an offensive or rude word that is used to express anger, frustration, surprise, etc.诅咒;咒骂
under oath
law also on oath
: having made a formal promise to tell the truth in a court of law(在法庭上)宣誓说实话,经宣誓 -
In a U.S. court of law, a witness must swear under oath to tell “the truth, the whole truth, and nothing but the truth.”在美国的法庭上,证人必须宣誓“说实话,说全部的实话,只说实话”。
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He said in testimony given under oath that he was not there the night of the crime.他在法庭上宣誓后做证,案发当晚他不在现场。