invalidate
v[Tn]
make (sth) invalid 使(某事物)无效或作废
faulty logic which invalidated her argument 造成她的论据不能成立的错误逻辑. invalidation n [U]
(action of) making sth invalid 无效; 作废
The making of false statements could result in the invalidation of the contract. 提供虚假资料可能导致合同失效.
Many offices use answering machines to give information.
许多办公室使用留言机来提供信息。
I have got some wonderful news to tell you. I have been offered a scholarship at a university in Australia for my further education. One hundred and twenty-five students took exams for it, and I was one of the five to be chosen. However, my parents are tr