常見例句The state or quality of being null. 無效無效的狀況或性質(zhì)The act of making null and void. 廢除使 ... 作廢和無效The contract was null and void because it was not signed. 這個(gè)合同無效,因?yàn)樗形春炞帧?/li>The court ruled that the claim was null and void. 法庭裁決此項(xiàng)要求無效。The gravity is measured by nulling the beam. 重力值是通過使橫臂恢復(fù)零位而測定的。The marriage was declared null and void. 婚姻已宣告無效了。 返回 nulling