perjure
v[Tn]
~ oneself (law 律) tell a lie (esp in a court of law) after one has sworn an oath to tell the truth 发假誓, 作伪证(尤指在法庭上)
Several witnesses at the trial were clearly prepared to perjure themselves in order to protect the accused. 在审判时几个证人显然已准备好为袒护被告而作伪证.