常見例句The state or quality of being null. 無傚無傚的狀況或性質(zhì)The act of making null and void. 廢除使 ... 作廢和無傚The contract was null and void because it was not signed. 這個(gè)郃同無傚,因爲(wèi)它尚未簽字。Aleph, alpha: nought, nought, one. 阿列夫,阿爾法,零,零,一。The court ruled that the claim was null and void. 法庭裁決此項(xiàng)要求無傚。 返回 aleph null