aleph null

常见例句

• The state or quality of being null.
  无效无效的状况或性质
• The act of making null and void.
  废除使 ... 作废和无效
• The contract was null and void because it was not signed.
  这个合同无效，因为它尚未签字。
• Aleph, alpha: nought, nought, one.
  阿列夫，阿尔法，零，零，一。
• The court ruled that the claim was null and void.
  法庭裁决此项要求无效。
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