今天我们要学的词是 invalid. Invalid 形容词，无效的。South Africa's High Court ruled that President Jacob Zuma's appointment of a state prosecutor was invalid. 南非最高法院裁决，南非总统祖马对一名政府检察官的任命无效。The Greek Supreme Court ruled as invalid the first same-sex marriage which was conducted in 2008. 希腊最高法院裁决，2008年希腊的第一个同性恋婚姻在法律上无效。好的，我们今天学习的词是invalid, invalid, invalid ...